Patent US2954816A successfully refreshed from Google Patents.
US2954816A
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Apparatus and method for reinforcing sheet material
Assignee: ST Regis Paper Co
•
Filing: 1956-01-31
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Granted: 1960-10-04
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A Havemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:58
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/68; B29C70/685; B29C70/687; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/133; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1734
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195951A
Cited
GB440191A
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US2439043A
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US2496911A
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GB713543A
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US2561781A
Cited
US2718254A
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US2778404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |