Lawrence M. Douglas

Person

South Easton, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Multiple mode imaging system
- Patent number 6,175,691
- Issue date Jan 16, 2001
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Folding camera
- Patent number 6,055,374
- Issue date Apr 25, 2000
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Self-developing camera
- Patent number 6,055,375
- Issue date Apr 25, 2000
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Preloaded single-use instant camera
- Patent number 6,006,036
- Issue date Dec 21, 1999
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic apparatus
- Patent number 5,946,502
- Issue date Aug 31, 1999
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electronic still camera with printing capability
- Patent number 5,946,031
- Issue date Aug 31, 1999
- Polaroid Corporation
- Lawrence M. Douglas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Preloaded single-use instant camera
- Patent number 5,838,997
- Issue date Nov 17, 1998
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Foldable photographic camera
- Patent number D333670
- Issue date Mar 2, 1993
- Polaroid Corporation
- Lawrence M. Douglas
- D16 - Photography and optical equipment
Information Patent Grant
Reflex camera having pivotable mirror
- Patent number 5,107,289
- Issue date Apr 21, 1992
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Collapsible camera
- Patent number 5,027,142
- Issue date Jun 25, 1991
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pivotally mounted spread roller assembly
- Patent number 5,023,636
- Issue date Jun 11, 1991
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera having film cassette hold back/film exit shade
- Patent number 5,001,502
- Issue date Mar 19, 1991
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic film assemblage having instant film
- Patent number 4,827,297
- Issue date May 2, 1989
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Instant type camera for receiving a collapsible film cassette
- Patent number 4,814,801
- Issue date Mar 21, 1989
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electronic image printing apparatus
- Patent number 4,800,400
- Issue date Jan 24, 1989
- Polaroid Corporation
- Lawrence M. Douglas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integral self-developing film unit and system for use thereof
- Patent number 4,545,663
- Issue date Oct 8, 1985
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film processing apparatus for self-processing film unit with a fold...
- Patent number 4,461,556
- Issue date Jul 24, 1984
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of and apparatus for processing film
- Patent number 4,452,523
- Issue date Jun 5, 1984
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Self-processing film unit with liquid applicator
- Patent number 4,429,037
- Issue date Jan 31, 1984
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera for taking multiple exposures on a single sheet of film
- Patent number 4,270,855
- Issue date Jun 2, 1981
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film advancing apparatus
- Patent number 4,249,811
- Issue date Feb 10, 1981
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera having manually operable dark slide ejection apparatus
- Patent number 4,225,220
- Issue date Sep 30, 1980
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Varying frictional forces on a film advancing apparatus
- Patent number 4,212,524
- Issue date Jul 15, 1980
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector
- Patent number 4,200,367
- Issue date Apr 29, 1980
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Duel focal plane photocells
- Patent number 4,175,843
- Issue date Nov 27, 1979
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multiple format photograhic camera
- Patent number 4,140,381
- Issue date Feb 20, 1979
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic apparatus having a spring driven motor
- Patent number 4,104,659
- Issue date Aug 1, 1978
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Selective closure of camera viewfinder and camera incorporating same
- Patent number 4,086,604
- Issue date Apr 25, 1978
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film advance mechanism
- Patent number 4,068,244
- Issue date Jan 10, 1978
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Compact self-developing camera with folded optical image path
- Patent number 4,064,518
- Issue date Dec 20, 1977
- Polaroid Corporation
- Lawrence M. Douglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Lawrence M. Douglas

Person

Patents Grantslast 30 patents

Multiple mode imaging system

Folding camera

Self-developing camera

Preloaded single-use instant camera

Photographic apparatus

Electronic still camera with printing capability

Preloaded single-use instant camera

Foldable photographic camera

Reflex camera having pivotable mirror

Collapsible camera

Pivotally mounted spread roller assembly

Camera having film cassette hold back/film exit shade

Photographic film assemblage having instant film

Instant type camera for receiving a collapsible film cassette

Electronic image printing apparatus

Integral self-developing film unit and system for use thereof

Film processing apparatus for self-processing film unit with a fold...

Method of and apparatus for processing film

Self-processing film unit with liquid applicator

Camera for taking multiple exposures on a single sheet of film

Film advancing apparatus

Camera having manually operable dark slide ejection apparatus

Varying frictional forces on a film advancing apparatus

Projector

Duel focal plane photocells

Multiple format photograhic camera

Photographic apparatus having a spring driven motor

Selective closure of camera viewfinder and camera incorporating same

Film advance mechanism

Compact self-developing camera with folded optical image path