Patent US2297536A successfully refreshed from Google Patents.
US2297536A
Expired / Lapsed
US
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Cotton fibers and method of treating same
Assignee: Uniroyal Inc
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Filing: 1940-12-31
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Granted: 1942-09-29
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Expires: 1960-12-31
Abstract
No abstract record available.
Inventors
- 👤 Howard M Buckwalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/17; B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/40; Y; Y10; Y10S; Y10S57/00; Y10S57/902
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) | 1945-09-28 | 1946-03-30 | 1946-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-28 | 1950-03-30 | 1950-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-28 | 1954-03-30 | 1954-09-29 | $7700.00 | Window Closed / Lapsed |