Patent US2935752A successfully refreshed from Google Patents.
US2935752A
Expired / Lapsed
US
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Combined punching and uncurling machine
Assignee: Plastic Binding Corp
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Filing: 1953-05-27
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Granted: 1960-05-10
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Rowley George Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:36
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; B42B5/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1062753A
Cited
US1409742A
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US2334815A
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US2257714A
Cited
US2603801A
Cited
US2638986A
Cited
US2593805A
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 |