US2443787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator
Assignee: HUGH S WERTZ
•
Filing: 1944-01-15
•
Granted: 1948-06-22
•
Expires: 1964-01-15
Abstract
No abstract record available.
Inventors
- 👤 Guyon L C Earle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:38
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D23/00; F25D23/10; F25D2400/00; F25D2400/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2127991A
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US933682A
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US1893535A
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US1902445A
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US2065604A
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US2133958A
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US2270844A
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US2156668A
Cited
US2328130A
Cited
US2241053A
Cited
US2246342A
Cited
US2312326A
Cited
US2292405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |