Patent US5627426A successfully refreshed from Google Patents.
Patent US1635012A successfully refreshed from Google Patents.
US1635012A
Expired / Lapsed
US
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Process of drying alkali cellulose
Assignee: Eastman Kodak Co
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Filing: 1921-05-24
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Granted: 1927-07-05
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Expires: 1941-05-24
Abstract
No abstract record available.
Inventors
- 👤 Paul C Seel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:18
CPC Classifications
C; C08; C08B; C08B1/00; C08B1/08; F; F26; F26B; F26B9/00; F26B9/06
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) | 1930-07-04 | 1931-01-03 | 1931-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-04 | 1935-01-03 | 1935-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-04 | 1939-01-03 | 1939-07-05 | $7700.00 | Window Closed / Lapsed |