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US2632304A
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US
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Oil defrosting unit
Assignee: Individual
•
Filing: 1949-08-01
•
Granted: 1953-03-24
•
Expires: 1969-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Irby C White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; Y; Y10; Y10S; Y10S62/00; Y10S62/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819510A
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US2301656A
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US2228364A
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US2243466A
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US2452102A
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US2459173A
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US2551163A
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US2451682A
Cited
US2524568A
Cited
US2526032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |