Patent US3596989A successfully refreshed from Google Patents.
US3596989A
Expired / Lapsed
US
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Seat unit
Assignee: American Seating Co
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Filing: 1969-05-14
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Granted: 1971-08-03
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Expires: 1989-05-14
Abstract
Abstract A seat unit for a folding chair wherein the panlike seat is equipped with a foam pad and fabric seat cover removably secured to the underside of the panlike seat.
Inventors
- 👤 Arthur L Van Ryn
- 👤 Ernest R Balys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:10
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/10; A47C31/11
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
111 words
A seat unit for a chair comprising a seat pan having an integral depending perimetric flange, said flange having an inwardly extending portion defining a generally cylindrical groove interiorly of the depending flange and terminating in a generally horizontal edge facing outwardly toward said depending flange, a resilient foam pad mounted on said pan top, a removable cover for said seat having a flexible panel extending over said pad and in overlapping relation with said return flange portion, and an elongated stiffener in said cylindrical groove having its side in contact with said horizontal flange edge, said cover being secured to said stiffener above said edge and out of contact therewith.
Claim 2
Dependent Claim
111 words
A seat unit for a chair comprising a seat pan having an integral depending perimetric flange, said flange having an inwardly extending portion defining a generally cylindrical groove interiorly of the depending flange and terminating in a generally horizontal edge facing outwardly toward said depending flange, a resilient foam pad mounted on said pan top, a removable cover for said seat having a flexible panel extending over said pad and in overlapping relation with said return flange portion, and an elongated stiffener in said cylindrical groove having its side in contact with said horizontal flange edge, said cover being secured to said stiffener above said edge and out of contact therewith.
Claim 3
Dependent Claim
25 words
The structure of claim 1 in which said cover is formed of woven material and is connected to said stiffener by a line of stitching.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |