Patent US2523651A successfully refreshed from Google Patents.
US2523651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propelling means
Assignee: Individual
•
Filing: 1946-03-29
•
Granted: 1950-09-26
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Doussain Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:33
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; B64C11/06; Y; Y10; Y10S; Y10S415/00; Y10S415/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108660A
Cited
FR518217A
Cited
GB240291A
Cited
US1951320A
Cited
GB384424A
Cited
US1969280A
Cited
FR768696A
Cited
FR787622A
Cited
US2147078A
Cited
GB505169A
Cited
GB483760A
Cited
US2182285A
Cited
FR844832A
Cited
FR50162E
Cited
US2338420A
Cited
US2392556A
Cited
US2232683A
Cited
GB550354A
Cited
US2367230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |