US2273206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for incorporating fibrous material in rubber
Assignee: Individual
•
Filing: 1939-07-24
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Granted: 1942-02-17
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Expires: 1959-07-24
Abstract
No abstract record available.
Inventors
- 👤 John W Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:19
CPC Classifications
C; C08; C08L; C08L21/00; B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/52; B29B7/56; B29B7/58; B29B7/60; B29B7/606; B29B7/74; B29B7/7476; B29B7/7495; B29B7/80; B29B7/88; B29B7/90; B29B7/905; C08K; C08K7/00; C08K7/02; C08L1/00; C08L89/00; C08L97/00
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) | 1945-02-16 | 1945-08-18 | 1946-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-16 | 1949-08-18 | 1950-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-16 | 1953-08-18 | 1954-02-17 | $7700.00 | Window Closed / Lapsed |