Patent US3018638A successfully refreshed from Google Patents.
US3018638A
Expired / Lapsed
US
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Portable refrigeration apparatus
Assignee: Individual
•
Filing: 1959-11-13
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Granted: 1962-01-30
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Expires: 1979-11-13
Abstract
No abstract record available.
Inventors
- 👤 Eric H Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:39
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/006; F25D15/00; F25D11/02; F25D11/027; F25D2303/00; F25D2303/08; F25D2303/084; F25D2303/0844; F25D2317/00; F25D2317/06; F25D2317/066; F25D2317/0665; F25D2331/00; F25D2331/80; F25D2331/804; F25D3/00; F25D3/02; F25D3/06; F25D3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2033554A
Cited
US2016377A
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US1983056A
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US2483100A
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US2462115A
Cited
US2585360A
Cited
US2694297A
Cited
US2781643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |