US2667759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator apparatus
Assignee: Individual
•
Filing: 1952-07-25
•
Granted: 1954-02-02
•
Expires: 1972-07-25
Abstract
No abstract record available.
Inventors
- 👤 Brown Ernest Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:53
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/12; F25D23/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA472146A
Cited
US2068550A
Cited
US2322769A
Cited
US2409069A
Cited
US2317775A
Cited
US2303806A
Cited
US2363375A
Cited
US2565995A
Cited
US2612029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |