Patent US2685177A successfully refreshed from Google Patents.
US2685177A
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US
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Congelating liquids
Assignee: ATELIERS ET CHANTIERS de la LOIRE SA
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Filing: 1950-08-15
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Granted: 1954-08-03
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Expires: 1970-08-15
Abstract
No abstract record available.
Inventors
- 👤 Wagner Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:36
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/02; A; A23; A23B; A23B2/00; A23B2/80; A23B2/803
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |