US2437257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator and means for main
Assignee: —
•
Filing: —
•
Granted: 1948-03-09
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25D31/00; F25D31/002; F25D31/003; F25B; F25B49/00; F25B49/02; F25B49/025; F25B5/00; F25D2400/00; F25D2400/08; F25D2400/10; F25D2700/00; F25D2700/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1014833A
Cited
US1728804A
Cited
US2158542A
Cited
US2140810A
Cited
US2329139A
Cited
US2327355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |