William M. Plachy

Person

San Marcos, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Interlocking container and toy block sets
- Patent number 4,822,314
- Issue date Apr 18, 1989
- Edward D. O'Brian
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Folding slide and platform structure
- Patent number 4,365,799
- Issue date Dec 28, 1982
- Edward D. O'Brian
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Folding three-cornered vehicle
- Patent number 4,198,069
- Issue date Apr 15, 1980
- Edward D. O'Brian
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Collapsible structures
- Patent number 4,166,343
- Issue date Sep 4, 1979
- Edward D. O'Brian
- E04 - BUILDING
Information Patent Grant
Folding structure used as a climber for preschool children
- Patent number 4,159,112
- Issue date Jun 26, 1979
- Edward D. O'Brian
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Folding structures useful as two-wheeled carts
- Patent number 4,138,140
- Issue date Feb 6, 1979
- Edward D. O'Brian
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Folding structures considered to be primarily useful for play purposes
- Patent number 4,122,638
- Issue date Oct 31, 1978
- Edward D. O'Brian
- E04 - BUILDING
Information Patent Grant
Folding wheelbarrows
- Patent number 4,109,933
- Issue date Aug 29, 1978
- Edward D. O'Brian
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Foldable structures considered to be primarily useful as doghouses
- Patent number 4,109,427
- Issue date Aug 29, 1978
- Edward D. O'Brian
- E04 - BUILDING
Information Patent Grant
Folding, rigid, tent-like structure
- Patent number 4,085,762
- Issue date Apr 25, 1978
- Edward D. O'Brian
- E04 - BUILDING

William M. Plachy

Person

Patents Grantslast 30 patents

Interlocking container and toy block sets

Folding slide and platform structure

Folding three-cornered vehicle

Collapsible structures

Folding structure used as a climber for preschool children

Folding structures useful as two-wheeled carts

Folding structures considered to be primarily useful for play purposes

Folding wheelbarrows

Foldable structures considered to be primarily useful as doghouses

Folding, rigid, tent-like structure