Plachy; William M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Plachy; William M..The latest application filed is for "interlocking container and toy block sets".
- Plachy; William M. - San Marcos CA
- Plachy; William M. - Los Angeles CA
| Patent | Date |
|---|---|
| Interlocking container and toy block sets Grant 4,822,314 - O'Brian , et al. April 18, 1 | 1989-04-18 |
| Folding slide and platform structure Grant 4,365,799 - O'Brian , et al. December 28, 1 | 1982-12-28 |
| Collapsible structures Grant 4,166,343 - O'Brian , et al. September 4, 1 | 1979-09-04 |
| Folding structure used as a climber for preschool children Grant 4,159,112 - O'Brian , et al. June 26, 1 | 1979-06-26 |
| Folding wheelbarrows Grant 4,109,933 - O'Brian , et al. August 29, 1 | 1978-08-29 |
| Foldable structures considered to be primarily useful as doghouses Grant 4,109,427 - O'Brian , et al. August 29, 1 | 1978-08-29 |
| Folding, rigid, tent-like structure Grant 4,085,762 - O'Brian , et al. April 25, 1 | 1978-04-25 |
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