US2990698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus
Assignee: REVCO Inc
•
Filing: 1959-07-06
•
Granted: 1961-07-04
•
Expires: 1979-07-06
Abstract
No abstract record available.
Inventors
- 👤 Frank P Crotser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:20
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/006; F25B2400/00; F25B2400/05; F25B2400/051; F25B2400/052; F25B2400/054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2192368A
Cited
US2224377A
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US2393854A
Cited
US2819592A
Cited
US2760346A
Cited
US2787135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |