Patent US4017921A successfully refreshed from Google Patents.
US4017921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling blanket
Assignee: Individual
•
Filing: 1975-01-30
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Granted: 1977-04-19
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Expires: 1995-01-30
Abstract
Abstract A blanket is provided for producing a cooling effect as opposed to a conventional blanket which retains heat is provided. The blanket has a plurality of elongated chambers defined normally by a plurality of elongated joints between blanket lamina. The chambers are adapted for receiving ice.
Inventors
- 👤 Carmen T. Hernandez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:11
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/02; A47G9/0207; A47G9/0215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A blanket adapted to receive ice; said blanket comprising: a pair of elongated sheets of water impervious material; said sheets being substantially congruent and being disposed adjoining each other as layers, said sheets being sealably adhered to each other along a plurality of spaced apart parallel elongated strip regions running the length of said sheets in a manner that a plurality of parallel elongated chambers between said sheets and running the length of said sheets are defined in alternating relationship with said elongated strip regions; a plurality of zipper closure members respectively located at one end of said plurality of chambers for allowing said chambers to be filled with ice; and a facing material permanently adhered over said sheets.
Claim 2
Dependent Claim
119 words
A blanket adapted to receive ice; said blanket comprising: a pair of elongated sheets of water impervious material; said sheets being substantially congruent and being disposed adjoining each other as layers, said sheets being sealably adhered to each other along a plurality of spaced apart parallel elongated strip regions running the length of said sheets in a manner that a plurality of parallel elongated chambers between said sheets and running the length of said sheets are defined in alternating relationship with said elongated strip regions; a plurality of zipper closure members respectively located at one end of said plurality of chambers for allowing said chambers to be filled with ice; and a facing material permanently adhered over said sheets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |