Patent US3553976A successfully refreshed from Google Patents.
US3553976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container refrigerator
Assignee: Individual
•
Filing: 1968-07-29
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Granted: 1971-01-12
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Expires: 1988-07-29
Abstract
Abstract A CONTAINER REFRIGERATOR IS DESCRIBED WHEREIN A REFRIGERATING MEMBER IS ATTACHED TO THE OUTSIDE SURFACE OF AN EXISTING CONTAINER. THE REFRIGERATING MEMBER IS SHOWN AS A TUBULAR MEMBER EITHER IN THE FORM OF A C-SHAPED RING MEMBER THAT CAN BE EXPANDED AND SNAPPED ONTO A CYLINDER OR A HELICALLY COILED TUBE THAT CAN BE EXPANDED AND SLID ONTO THE CONTAINER AND RELEASED TO BE HELD IN PLACE. THE REFRIGERATING MEMBER HOLDS A REFRIGERATING MEDIUM WHICH CAN BE VENTED FOR REDUCTION OF TEMPERATURE AND THE MEDIUM CAN BE EXPANDED BETWEEN PORTIONS OF THE REFRIGERATING MEMBER.
Inventors
- 👤 Eric Cumine
- 👤 Charles H Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:36
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/107; F25D2331/00; F25D2331/80; F25D2331/805
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |