US3100610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing system for a helicopter
Assignee: Individual
•
Filing: 1962-04-03
•
Granted: 1963-08-13
•
Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Victor O Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/001; B64C27/14; B64C27/32; B64C27/37; B64C27/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A HELICOPTER COMPRISING: (A) A FUSELAGE; (B) A ROTOR ROTATABLY SUPPORTED ON AND ABOVE SAID FUSELAGE; (C) A POWER PLANT DISPOSED BETWEEN SAID ROTOR AND SAID FUSELAGE FOR DRIVING SAID ROTOR; AND
Claim 2
Dependent Claim
32 words
A HELICOPTER COMPRISING: (A) A FUSELAGE; (B) A ROTOR ROTATABLY SUPPORTED ON AND ABOVE SAID FUSELAGE; (C) A POWER PLANT DISPOSED BETWEEN SAID ROTOR AND SAID FUSELAGE FOR DRIVING SAID ROTOR; AND
References Cited (Backward Citations)
US2404014A
Cited
US2795110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |