US3022639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built-in refrigeration apparatus with defrost controls
Assignee: REVCO Inc
•
Filing: 1959-09-18
•
Granted: 1962-02-27
•
Expires: 1979-09-18
Abstract
No abstract record available.
Inventors
- 👤 Carl E Brown
- 👤 Frank P Crotser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:51
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2285946A
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US2451903A
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US2711456A
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US2876630A
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US2741098A
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US2882696A
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US2895307A
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US2907184A
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US2909907A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |