US2632312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical pressure plate food freezing machine
Assignee: Individual
•
Filing: 1948-02-16
•
Granted: 1953-03-24
•
Expires: 1968-02-16
Abstract
No abstract record available.
Inventors
- 👤 Isaac H Polk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:01
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1527562A
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US1928755A
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US1977373A
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US2076770A
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US2029175A
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US2145308A
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US2124110A
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US2315768A
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US2436390A
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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) | 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 |