US2525172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Individual
•
Filing: 1948-03-11
•
Granted: 1950-10-10
•
Expires: 1968-03-11
Abstract
No abstract record available.
Inventors
- 👤 Leon B French
- 👤 John F Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:29
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25B; F25B5/00; F25B5/04; F25D31/00; F25D31/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US606326A
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US1193555A
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US1938316A
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US2007288A
Cited
US2095036A
Cited
US1975046A
Cited
US2276811A
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US2418572A
Cited
US2416777A
Cited
US2430110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |