Patent US2930204A successfully refreshed from Google Patents.
US2930204A
Expired / Lapsed
US
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Refrigerator
Assignee: Individual
•
Filing: 1956-02-21
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Granted: 1960-03-29
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Lang Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:25
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1109021A
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US1134269A
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US1105171A
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US1161678A
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US1890531A
Cited
US1860133A
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US1856765A
Cited
US1841136A
Cited
US1866825A
Cited
US2237302A
Cited
US2722806A
Cited
US2850266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |