US3120211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sailing mast attachment
Assignee: Individual
•
Filing: 1961-07-12
•
Granted: 1964-02-04
•
Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Mahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:58
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN AIR CONTROL DEVICE FOR CRAFT HAVING A SAIL COMPRISING A RIGID VANE CONCAVE ALONG ITS HORIZONTAL SECTION TOWARD SAID SAIL, SAID VANE MOVABLY MOUNTED ADJACENT TO AND IN SPACED RELATIONSHIP TO SAID SAIL, AND MEANS FOR MOVING SAID VANE INDEPENDENTLY OF SAID SAIL THROUGH GENERALLY VERTICAL PLANES TO A DESIRED FIXED POSITION TO REDIRECT WIND TO A STRONGER DRIVING DIRECTION RELATIVE TO SAID SAIL.
Claim 2
Dependent Claim
65 words
AN AIR CONTROL DEVICE FOR CRAFT HAVING A SAIL COMPRISING A RIGID VANE CONCAVE ALONG ITS HORIZONTAL SECTION TOWARD SAID SAIL, SAID VANE MOVABLY MOUNTED ADJACENT TO AND IN SPACED RELATIONSHIP TO SAID SAIL, AND MEANS FOR MOVING SAID VANE INDEPENDENTLY OF SAID SAIL THROUGH GENERALLY VERTICAL PLANES TO A DESIRED FIXED POSITION TO REDIRECT WIND TO A STRONGER DRIVING DIRECTION RELATIVE TO SAID SAIL.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |