US3559416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water energized refrigerant and package therefor
Assignee: Technology Investors Inc
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Filing: 1967-04-21
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Granted: 1971-02-02
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Expires: 1987-04-21
Abstract
Abstract The present invention relates to granular material which, when water is added thereto, becomes cold and serves as a refrigerant, and a preferred and alternate forms of a waterproof package that so contains the material that water can be easily mixed therewith to obtain a refrigerating action.
Inventors
- 👤 Thomas E Cornwall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:15
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/066; F; F25; F25D; F25D5/00; F25D5/02; F25D2331/00; F25D2331/80; F25D2331/804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |