US2290613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber composition
Assignee: Bridgestone Firestone Inc
•
Filing: 1938-05-25
•
Granted: 1942-07-21
•
Expires: 1958-05-25
Abstract
No abstract record available.
Inventors
- 👤 Harold W Greenup
- 👤 Russell D Byall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:17
CPC Classifications
C; C08; C08L; C08L7/00; C08L7/02
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) | 1945-07-20 | 1946-01-19 | 1946-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-20 | 1950-01-19 | 1950-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-20 | 1954-01-19 | 1954-07-21 | $7700.00 | Window Closed / Lapsed |