US5226188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilated foam cushion
Assignee: Individual
•
Filing: 1992-06-26
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Granted: 1993-07-13
•
Expires: 2012-06-26
Abstract
Abstract This invention relates to a cushion and in particular to one including a pad with an upper surface having a plurality of through holes, and a seat having a recess for receiving the pad and a plurality of ventilation holes, whereby when an user seats thereon, the pad and the seat will be deformed thereby causing the air therein to eject upwardly to blow off the heat evolved from the user.
Inventors
- 👤 Yaw-Tyng Liou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/74; A47C7/742; A47C21/00; A47C21/04; A47C21/042; A47C21/046; A47C27/00; A47C27/14; A47C27/142; A47C27/144; A47C27/146; A47C27/148; A47C27/15; A47G; A47G9/00; A47G9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A cushion comprising: a pad provided with a plurality of conical through holes and having two inclined opposite sides and a flat bottom; and a seat having a recess for receiving said pad and a check valve in communication with said recess, said recess being provided with a plurality of conical ventilation holes which are in communication with each other.
Claim 2
Dependent Claim
60 words
A cushion comprising: a pad provided with a plurality of conical through holes and having two inclined opposite sides and a flat bottom; and a seat having a recess for receiving said pad and a check valve in communication with said recess, said recess being provided with a plurality of conical ventilation holes which are in communication with each other.
References Cited (Backward Citations)
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GB2076648A
Cited
US4451083A
Cited
GB2161376A
Cited
US5106161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |