Patent US1979762A successfully refreshed from Google Patents.
US1979762A
Expired / Lapsed
US
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Method of finishing sheet pyroxylin
Assignee: FIBERLOID Corp
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Filing: 1930-02-12
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Granted: 1934-11-06
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Expires: 1950-02-12
Abstract
No abstract record available.
Inventors
- 👤 Robert G O'kane
- 👤 Elmer R Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:36
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C55/143; B29C2793/00; B29C2793/0063; B29C48/00; B29C48/001; B29C48/0018; B29C48/0019; B29C48/0022; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29K; B29K2001/00; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |