Constantin Systems, Inc.

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Opaque projector
- Patent number RE32648
- Issue date Apr 19, 1988
- Constantin Systems, Inc.
- John R. Montgomery
- 353 - Optics: image projectors
Information Patent Grant
Portable opaque projector
- Patent number 4,721,380
- Issue date Jan 26, 1988
- Constantin Systems, Inc.
- Stephen Gryglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermal management system for an episcopic image projector
- Patent number 4,682,868
- Issue date Jul 28, 1987
- Constantin Systems, Inc.
- Emile J. Constantin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Opaque projector
- Patent number 4,468,105
- Issue date Aug 28, 1984
- Constantin Systems, Inc.
- John R. Montgomery
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
73551916 - OPIX
- Serial number 73551916
- Registration number 1508956
- Filing date Aug 5, 1985
- QUANTUM DATA, INC.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73551423 - OPIX
- Serial number 73551423
- Registration number 1413129
- Filing date Aug 2, 1985
- CONSTANTIN SYSTEMS, INC.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73532101 - CS
- Serial number 73532101
- Registration number 1364237
- Filing date Apr 15, 1985
- CONSTANTIN SYSTEMS, INC.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments