Patent US2587104A successfully refreshed from Google Patents.
US2587104A
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US
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Apparatus of the gyroplane type
Assignee: Individual
•
Filing: 1946-08-13
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Granted: 1952-02-26
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Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 Breguet Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:26
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1800470A
Cited
US1836351A
Cited
US1919089A
Cited
US2041789A
Cited
GB438111A
Cited
US2389170A
Cited
US2397489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |