US3199603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curved rotor blades
Assignee: Individual
•
Filing: 1965-01-25
•
Granted: 1965-08-10
•
Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Margolis Isadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:58
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A ROTOR BLADE FOR ROTARY WING AIRCRAFT, COMPRISIING FORWARD BEAM HAVING IN BOARD AND OUTBOARD ENDS, A REARWARD BEAM SPACED REARWARDLY FROM SAID FORWARD BEAM AND HAVING INBOARD AND OUTBOARD ENDS, SUPPORTING MEANS FOR THE INBOARD ENDS OF SAID BEAMS COMPRISING A SOCKET MEMBER HAVIING A PAIR OF CYLINDRICAL SOCKET BEARINGS OPENING TO THE OUTBOARD SIDE OF SIAD SOCKET MEMBER AND RESPECTIVELY DISPOSED WITH THEIR LONGITUDINAL AXES AT OUTWARDLY INCLINED ANGLES LATERALLY AT EACH SIDE OF THE CENTTAL LONGITUDINAL AXIS OF SAID SOCKET MEMBER, CYLINERICAL SHAFT EXTENSIONS RESPECTIVELY CARRIED BY SAID FORWARD
Claim 2
Dependent Claim
92 words
A ROTOR BLADE FOR ROTARY WING AIRCRAFT, COMPRISIING FORWARD BEAM HAVING IN BOARD AND OUTBOARD ENDS, A REARWARD BEAM SPACED REARWARDLY FROM SAID FORWARD BEAM AND HAVING INBOARD AND OUTBOARD ENDS, SUPPORTING MEANS FOR THE INBOARD ENDS OF SAID BEAMS COMPRISING A SOCKET MEMBER HAVIING A PAIR OF CYLINDRICAL SOCKET BEARINGS OPENING TO THE OUTBOARD SIDE OF SIAD SOCKET MEMBER AND RESPECTIVELY DISPOSED WITH THEIR LONGITUDINAL AXES AT OUTWARDLY INCLINED ANGLES LATERALLY AT EACH SIDE OF THE CENTTAL LONGITUDINAL AXIS OF SAID SOCKET MEMBER, CYLINERICAL SHAFT EXTENSIONS RESPECTIVELY CARRIED BY SAID FORWARD
References Cited (Backward Citations)
US2425353A
Cited
US2549407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |