US3989299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stadium riser backless seat, support and armrest
Assignee: Individual
•
Filing: 1975-07-07
•
Granted: 1976-11-02
•
Expires: 1995-07-07
Abstract
Abstract A combination seat mounting support and armrest for concrete stadium riser installation where backrests cannot be used or are not desired.
Inventors
- 👤 David C. De Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:33
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
In step riser mounted seating: individual seat means including, structural members adapted to be mounted to the upright face of a step riser at each side of a seat; individual seat bottom means adapted for being mounted between and by two of said structural members; said structural members being extended transversely above and below said individual seat bottom means mounted thereby; with the upper longitudinally extending portions of said structural members formed over by substantially ninety degrees so as to coextend with, and be substantially parallel to, said seat bottom means, to provide armrest sections above and to each side of said individual seat bottom means; each of said structural members being a continuous expanse of U-shaped channels with the exterior surface of the channel web adapted to be juxtaposed with, and mounted to, the upright vertical face of a step riser; and with such channel web exterior surface presenting upward facing armrest surfacing.
Claim 2
Dependent Claim
154 words
In step riser mounted seating: individual seat means including, structural members adapted to be mounted to the upright face of a step riser at each side of a seat; individual seat bottom means adapted for being mounted between and by two of said structural members; said structural members being extended transversely above and below said individual seat bottom means mounted thereby; with the upper longitudinally extending portions of said structural members formed over by substantially ninety degrees so as to coextend with, and be substantially parallel to, said seat bottom means, to provide armrest sections above and to each side of said individual seat bottom means; each of said structural members being a continuous expanse of U-shaped channels with the exterior surface of the channel web adapted to be juxtaposed with, and mounted to, the upright vertical face of a step riser; and with such channel web exterior surface presenting upward facing armrest surfacing.
Claim 3
Dependent Claim
50 words
The seat structure of claim 1, wherein said channel members are each mountable to the upright vertical facing of a concrete stadium by a plurality of stud and nut assemblies, with the studs extended through throughholes in said channel web and anchored in concrete of the stadium step riser structure.
Claim 4
Dependent Claim
62 words
The seat structure of claim 2, wherein the mounting of said individual seat bottom means includes structural angle members attached to said channel members to extend out from the channel members and away from the step riser mounting the respective channel members; and fastening means for fixedly mounting individual seat bottom means in place on respective pairs of said structural angle members.
Claim 5
Dependent Claim
26 words
The seat structure of claim 3, wherein individual seat bottom means are mounted higher than the upper surface of the stadium step riser mounting respective seats.
Claim 6
Dependent Claim
25 words
The seat structure of claim 3, wherein individual seat bottom means are bolted down at four corners to respective pairs of said structural angle means.
Claim 7
Dependent Claim
58 words
The seat structure of claim 3, wherein said individual seat bottom means include underside bottom open underside channel means having inner lip means; and a plurality of bolt-clip assembly means engaging said inner lip means of the channel means and extended through respective pairs of said structural angle means to secure the individual seat bottom means in place.
Claim 8
Dependent Claim
46 words
The seat structure of claim 6, wherein said individual seat bottom means underside bottom open underside channel means are at least two channels extended transversely from side to side across each seat bottom; and with end cap means closing each side end of individual seat bottoms.
Claim 9
Dependent Claim
13 words
The seat structure of claim 1, with individual seat bottoms box like structures.
Claim 10
Dependent Claim
15 words
The seat structure of claim 7, with individual seat bottoms having seat contoured upper surfaces.
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |