Patent US2672845A successfully refreshed from Google Patents.
Patent US2935762A successfully refreshed from Google Patents.
US2935762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of molded sponge plastic
Assignee: Gerber Products Co
•
Filing: 1957-03-04
•
Granted: 1960-05-10
•
Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Walter
- 👤 Thomas R Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:38
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/461
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A METHOD OF INJECTION MOLDING FOR SPONGE PLASTIC ARTICLES COMPRISING PREPARING A PLASTISOL, ABSORBING INSERT GAS INTO SAID PLASTISOL AT A RELATIVELY LOW PRESSURE, INCREASING THE PRESSURE OF GASSED PLASTISOL TO A RELATIVELY
Claim 2
Independent Claim
33 words
A METHOD OF INJECTION MOLDING FOR SPONGE PLASTIC ARTICLES COMPRISING PREPARING A PLASTISOL, ABSORBING INSERT GAS INTO SAID PLASTISOL AT A RELATIVELY LOW PRESSURE, INCREASING THE PRESSURE OF GASSED PLASTISOL TO A RELATIVELY
References Cited (Backward Citations)
CA458729A
Cited
US2156508A
Cited
US2576318A
Cited
US2669751A
Cited
FR1078949A
Cited
BE521827A
Cited
US2829117A
Cited
US2763475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |