US2107844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power developing unit for automotive vehicles
Assignee: Individual
•
Filing: 1937-02-24
•
Granted: 1938-02-08
•
Expires: 1957-02-24
Abstract
No abstract record available.
Inventors
- 👤 John T Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/20; B60L50/00; B60L50/10; B60L50/15; B60L50/16; B60L50/50; B60L50/60; B60L50/66; B60L58/00; B60L58/10; B60L58/12; B60L58/15; B60L7/00; B60L7/003; B60L7/10; B60L7/12; B60L7/24; B60L2240/00; B60L2240/10; B60L2240/12; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/423; B60L2240/44; B60L2240/441; B60L2240/443; B60L2240/54; B60L2240/545; B60L2250/00; B60L2250/10; B60L2250/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72
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) | 1941-02-07 | 1941-08-09 | 1942-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-07 | 1945-08-09 | 1946-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-07 | 1949-08-09 | 1950-02-08 | $7700.00 | Window Closed / Lapsed |