US3087173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable water ski fin
Assignee: Individual
•
Filing: 1959-11-12
•
Granted: 1963-04-30
•
Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Donald J Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
B; B63; B63B; B63B32/00; B63B32/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A RETRACTABLE WATER SKI FIN ASSEMBLY COMPRISING A DOWNWARDLY OPENING HOLLOW AND UPSTANDING HOUSING ADAPTED TO BE SECURED TO THE UPPER SURFACE OF A WATER SKI IN OVERLYING RELATION TO A LONGITUDINALLY EXTENDING SLOT FORMED IN THE AFT PORTION OF SAID SKI, A PANEL-LIKE VERTICALLY DISPOSED AND LONGITUDINALLY EXTENDING FIN, MEANS PIVOTALLY SECURING THE FORWARD PORTION OF SAID FIN TO THE FORWARD PORTION OF SAID HOUSING WITH THE AFT PORTION OF SAID FIN MOVABLE BETWEEN A RETRACTED POSITION RECEIVED SUBSTANTIALLY ENTIRELY WITHIN SAID HOUSING AND AN EXTENDED POSITION EXTENDING BELOW THE LOWER SURFACE OF SAID SKI, AND MEANS RESILIENTLY URGING SAID FIN TOWARD AN EXTENDED POSITION.
Claim 2
Dependent Claim
106 words
A RETRACTABLE WATER SKI FIN ASSEMBLY COMPRISING A DOWNWARDLY OPENING HOLLOW AND UPSTANDING HOUSING ADAPTED TO BE SECURED TO THE UPPER SURFACE OF A WATER SKI IN OVERLYING RELATION TO A LONGITUDINALLY EXTENDING SLOT FORMED IN THE AFT PORTION OF SAID SKI, A PANEL-LIKE VERTICALLY DISPOSED AND LONGITUDINALLY EXTENDING FIN, MEANS PIVOTALLY SECURING THE FORWARD PORTION OF SAID FIN TO THE FORWARD PORTION OF SAID HOUSING WITH THE AFT PORTION OF SAID FIN MOVABLE BETWEEN A RETRACTED POSITION RECEIVED SUBSTANTIALLY ENTIRELY WITHIN SAID HOUSING AND AN EXTENDED POSITION EXTENDING BELOW THE LOWER SURFACE OF SAID SKI, AND MEANS RESILIENTLY URGING SAID FIN TOWARD AN EXTENDED POSITION.
References Cited (Backward Citations)
US195741A
Cited
GB191201678A
Cited
US1475031A
Cited
US1721257A
Cited
FR753711A
Cited
US2593806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |