Patent US2304599A successfully refreshed from Google Patents.
US2522221A
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Rapid freeze process for food products
Assignee: Individual
•
Filing: 1944-09-20
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Granted: 1950-09-12
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Expires: 1964-09-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas Slade Gorton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:01
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B2/8033; A23B4/00; A23B4/06; A23B4/066; A23B4/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |