US2762784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tear-resistant porous plastic sheet material comprising polyvinylchloride and a copolymer of butadiene-acrylonitrile
Assignee: United Shoe Machinery Corp
•
Filing: 1952-04-26
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Granted: 1956-09-11
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Orville N Foust
- 👤 Eugene G Seems
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; B29C67/205; B29K; B29K2105/00; B29K2105/04; B29K2995/00; B29K2995/0037; B29K2995/0078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297248A
Cited
US2371868A
Cited
US2459739A
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US2452999A
Cited
US2465493A
Cited
US2570182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |