Patent US3049890A successfully refreshed from Google Patents.
US3049890A
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Immersion freezer
Assignee: BOOTH FISHERIES Corp
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Filing: 1957-10-16
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Granted: 1962-08-21
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Expires: 1977-10-16
Abstract
No abstract record available.
Inventors
- 👤 Albert J Ruppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:21
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/066; F; F25; F25D; F25D17/00; F25D17/02; F25D31/00; F25D31/002; F25D31/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1805354A
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US1801548A
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US1931623A
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US2188839A
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US2346459A
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US2428679A
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US2470551A
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US2546417A
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US2746272A
Cited
US2738749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |