Patent US2912658A successfully refreshed from Google Patents.
Patent US2840995A successfully refreshed from Google Patents.
US2840995A
Expired / Lapsed
US
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Refrigerator using solid carbon dioxide
Assignee: Individual
•
Filing: 1955-10-03
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Granted: 1958-07-01
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Expires: 1975-10-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Hazard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:54
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/12; F25D3/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1696651A
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US2044609A
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US1864259A
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US2019296A
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US2039334A
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US2187569A
Cited
US2104685A
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US2187913A
Cited
US2332027A
Cited
US2440098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |