US4037279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water ski
Assignee: Individual
•
Filing: 1975-10-17
•
Granted: 1977-07-26
•
Expires: 1995-10-17
Abstract
Abstract A water ski comprising a water ski body having a forward end, a rear end, a top side and a bottom side, and a fin extending downwardly from the bottom side, wherein the fin has an elastic portion movable laterally of the water ski body under the action of water.
Inventors
- 👤 Herbert F. Ziebart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:35
CPC Classifications
B; B63; B63B; B63B32/00; B63B32/30; B63B39/00; B63B39/06; B63B2039/068
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
In a water ski, the combination comprising a water ski body having a forward end, a rear end, a top side and a bottom side, a fin extending downwardly from the bottom side, said fin comprising two spaced frames and an elastic element interposed between said frames and defining an elastic portion of substantially uniform thickness movable laterally of the water ski body under the action of water, said water ski body including a longitudinally extending slot, said frames extending through said slot, said frame elements having flanges integral therewith and engaging the top side of said water ski.
Claim 2
Dependent Claim
99 words
In a water ski, the combination comprising a water ski body having a forward end, a rear end, a top side and a bottom side, a fin extending downwardly from the bottom side, said fin comprising two spaced frames and an elastic element interposed between said frames and defining an elastic portion of substantially uniform thickness movable laterally of the water ski body under the action of water, said water ski body including a longitudinally extending slot, said frames extending through said slot, said frame elements having flanges integral therewith and engaging the top side of said water ski.
Claim 3
Dependent Claim
70 words
In a water ski, the combination comprising a water ski body having a forward end, a rear end, a top side and a bottom side, a fin extending downwardly from the bottom side, said fin having an elastic portion movable laterally of the water ski body under the action of water, said fin comprising two spaced frames and an elastic element interposed between said frames and defining said elastic portion.
Claim 4
Dependent Claim
70 words
In a water ski, the combination comprising a water ski body having a forward end, a rear end, a top side and a bottom side, a fin extending downwardly from the bottom side, said fin having an elastic portion movable laterally of the water ski body under the action of water, said fin comprising two spaced frames and an elastic element interposed between said frames and defining said elastic portion.
Claim 5
Dependent Claim
23 words
The combination set forth in claim 2 wherein said water ski body includes a longitudinally extending slot, said frame extending through said slot.
Claim 6
Dependent Claim
24 words
The combination set forth in claim 3 wherein said frame elements have flanges integral therewith and engaging the top side of said water ski.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |