US2250612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1939-03-31
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Granted: 1941-07-29
•
Expires: 1959-03-31
Abstract
No abstract record available.
Inventors
- 👤 Elo C Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:39
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D19/00; F25D2317/00; F25D2317/06; F25D2317/065; F25D2317/0651; F25D2331/00; F25D2331/80; F25D2331/803; F25D2400/00; F25D2400/10; F25D31/00; F25D31/006; F25D31/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-07-28 | 1945-01-27 | 1945-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-28 | 1949-01-27 | 1949-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-28 | 1953-01-27 | 1953-07-29 | $7700.00 | Window Closed / Lapsed |