US2725233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finned tail-piece
Assignee: Motors Liquidation Co
•
Filing: 1951-02-24
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Granted: 1955-11-29
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Expires: 1971-02-24
Abstract
No abstract record available.
Inventors
- 👤 Calvin J Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:53
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/04; F42B6/06; Y; Y10; Y10S; Y10S416/00; Y10S416/03; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR498418A
Cited
US1293869A
Cited
FR499984A
Cited
US1520131A
Cited
GB353638A
Cited
US2064845A
Cited
US2494026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |