Patent US2642728A successfully refreshed from Google Patents.
US2642728A
Expired / Lapsed
US
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Portable refrigerator construction
Assignee: Individual
•
Filing: 1950-02-27
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Granted: 1953-06-23
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Expires: 1970-02-27
Abstract
No abstract record available.
Inventors
- 👤 Brinzie A Thomaras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:56
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D2400/00; F25D2400/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US687718A
Cited
US1837265A
Cited
US2057447A
Cited
US1932696A
Cited
US2161421A
Cited
US2462115A
Cited
US2483439A
Cited
US2492601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |