Patent US2291826A successfully refreshed from Google Patents.
US2291826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating mechanism
Assignee: Individual
•
Filing: 1938-04-07
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Granted: 1942-08-04
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Expires: 1958-04-07
Abstract
No abstract record available.
Inventors
- 👤 Muffly Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:11
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/08; F25D; F25D11/00; F25D11/006; F25D23/00; F25D23/12; F25D23/126; F25C2600/00; F25C2600/04
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) | 1945-08-03 | 1946-02-02 | 1946-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-03 | 1950-02-02 | 1950-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-03 | 1954-02-02 | 1954-08-04 | $7700.00 | Window Closed / Lapsed |