US3078482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming accessory
Assignee: Individual
•
Filing: 1959-05-11
•
Granted: 1963-02-26
•
Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Wyly K Crowder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/08; A63B31/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A WATER PROPULSION DEVICE FOR TRANSLATING AN OSCILLATING DRIVING MOTION INTO A THRUST IN A DIRECTION GENERALLY TRANSVERSE TO THE DRIVING MOTION COMPRISING A FLEXIBLE HYDROFOIL, MEANS FOR MOUNTING SAID HYDROFOIL FOR LIMITED ANGULAR OSCILLATION ABOUT AN AXIS GENERALLY PERPENDICULAR TO BOTH THE DESIRED DIRECTION OF THRUST AND TO THE DIRECTION OF THE OSCILLATING DRIVING MOTION, AND MEANS SUPPORTING SAID HYDROFOIL FOR FLEXING INTO AN ARCUATE FORM CONCAVE IN THE INSTANTANEOUS DIRECTION OF THE DRIVING MOTION.
Claim 2
Dependent Claim
76 words
A WATER PROPULSION DEVICE FOR TRANSLATING AN OSCILLATING DRIVING MOTION INTO A THRUST IN A DIRECTION GENERALLY TRANSVERSE TO THE DRIVING MOTION COMPRISING A FLEXIBLE HYDROFOIL, MEANS FOR MOUNTING SAID HYDROFOIL FOR LIMITED ANGULAR OSCILLATION ABOUT AN AXIS GENERALLY PERPENDICULAR TO BOTH THE DESIRED DIRECTION OF THRUST AND TO THE DIRECTION OF THE OSCILLATING DRIVING MOTION, AND MEANS SUPPORTING SAID HYDROFOIL FOR FLEXING INTO AN ARCUATE FORM CONCAVE IN THE INSTANTANEOUS DIRECTION OF THE DRIVING MOTION.
References Cited (Backward Citations)
US1324722A
Cited
US1636316A
Cited
US1706974A
Cited
US1704400A
Cited
FR678647A
Cited
GB405546A
Cited
US1983609A
Cited
US2365415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |