US2537640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat cushion
Assignee: Bridgestone Firestone Inc
•
Filing: 1946-05-27
•
Granted: 1951-01-09
•
Expires: 1966-05-27
Abstract
No abstract record available.
Inventors
- 👤 Hyland C Flint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:40
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US277639A
Cited
USRE21263E
Cited
US2233545A
Cited
US2207054A
Cited
US2259534A
Cited
US2308201A
Cited
US2225858A
Cited
US2366607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |