US3769645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canoe knee-seat
Assignee: PERFORMANCE PROD Inc
•
Filing: 1972-11-30
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Granted: 1973-11-06
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Expires: 1992-11-30
Abstract
Abstract A knee-seat for Canadian canoes is formed from a cup-shaped, one-piece plastic molding having a ring-shaped sill. A seat section extends obliquely upward from the rear molding wall to the front part of the sill. Shaped seat support walls provide for support of the upper thigh, and leg insertion openings on each side of the seat section facilitate easy entrance and exit. Additional thigh support may be provided by shaped walls on the outside of the leg insertion openings.
Inventors
- 👤 K Lettman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:18
CPC Classifications
B; B63; B63B; B63B29/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
A knee seat for Canadian canoes comprising a cup-shaped plastic molding, said molding including a ring-shaped sill, a seat section adjacent to the rear wall of said molding, said seat section shaped in the form of a central ridge extending obliquely upward from said rear wall to the front part of said sill, a leg insertion opening on each side of said ridge, molded support walls extending obliquely outward to each side of said central ridge, said support walls conforming to the shape of the upper thigh.
Claim 2
Dependent Claim
87 words
A knee seat for Canadian canoes comprising a cup-shaped plastic molding, said molding including a ring-shaped sill, a seat section adjacent to the rear wall of said molding, said seat section shaped in the form of a central ridge extending obliquely upward from said rear wall to the front part of said sill, a leg insertion opening on each side of said ridge, molded support walls extending obliquely outward to each side of said central ridge, said support walls conforming to the shape of the upper thigh.
Claim 3
Dependent Claim
39 words
A knee seat according to claim 1, wherein a wall is provided on said sill, said wall bounding each of said leg insertion openings on the outer side thereof, said wall adapted to the shape of the upper thigh.
Claim 4
Dependent Claim
18 words
A knee seat according to claim 1, wherein said front portion Of said center ridge is divided fork-like.
References Cited (Backward Citations)
US2674753A
Cited
US2803837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |