Patent US4868898A successfully refreshed from Google Patents.
US4868898A
Expired / Lapsed
US
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Electrically heated portable seat
Assignee: Individual
•
Filing: 1988-08-12
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Granted: 1989-09-19
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Expires: 2008-08-12
Abstract
Abstract An electrically heated portable seat for automobiles includes a flexible and liquid-impervious container having spaced top and bottom surfaces, a sponge-like material bonded to the inner surface of the container, a liquid absorbed in the sponge-like material, and an electrical heating element for heating the liquid inside of the container. The seat is plugged into a wall outlet in a house just before its use. After the seat is warmed up, it is carried to a car and placed on the car seat.
Inventors
- 👤 Hiroshi Seto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:00
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/74; A47C7/748; H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B2203/00; H05B2203/013; H05B2203/029
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
62 words
A portable seat comprising, a flexible and liquid-impervious container having spaced top and bottom surfaces, a sponge-like material in the container, bonding means for creating permanent bond between the outer surface of the sponge-like material and the inner surface of the container, a liquid absorbed in the sponge-like material, and an electrical heating element for heating the liquid inside of the container.
Claim 2
Dependent Claim
62 words
A portable seat comprising, a flexible and liquid-impervious container having spaced top and bottom surfaces, a sponge-like material in the container, bonding means for creating permanent bond between the outer surface of the sponge-like material and the inner surface of the container, a liquid absorbed in the sponge-like material, and an electrical heating element for heating the liquid inside of the container.
Claim 3
Dependent Claim
28 words
The portable seat of claim 1 wherein at least a portion of the outer surface of the sponge-like material is bonded to the inner surface of the container.
Claim 4
Dependent Claim
15 words
The portable seat of claim 1 wherein the heating element has a temperature control device.
Claim 5
Dependent Claim
14 words
The portable seat of claim 1 wherein the container is partially filled with liquid.
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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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |