US2486876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of freezing food
Assignee: ARTHUR WM NELSON
•
Filing: 1943-11-18
•
Granted: 1949-11-01
•
Expires: 1963-11-18
Abstract
No abstract record available.
Inventors
- 👤 Harry W Protzeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:29
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B2/805; A23B7/00; A23B7/04; A23B7/0425; F25D13/00; F25D13/06; F25D13/067; F25D25/00; F25D25/005; F25D2317/00; F25D2317/04; F25D2317/041; F25D2317/0411; F25D2317/043
Claims Analysis
Total Claims: 0
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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) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |