Patent US2804531A successfully refreshed from Google Patents.
US2804531A
Expired / Lapsed
US
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Range
Assignee: American Motors Corp
•
Filing: 1952-10-30
•
Granted: 1957-08-27
•
Expires: 1972-10-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Dadson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:47
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2122650A
Cited
US2210947A
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US2434467A
Cited
US2276930A
Cited
US2435530A
Cited
US2409434A
Cited
US2498127A
Cited
US2648755A
Cited
US2666124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |