Patent US2707868A successfully refreshed from Google Patents.
US2707868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating system, including a mixing valve
Assignee: Individual
•
Filing: 1951-06-29
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Granted: 1955-05-10
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 Goodman William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:06
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/026; F28F9/0282; F25; F25B; F25B39/00; F25B39/02; F25B41/00; F25B41/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/4336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1480126A
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US2158792A
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US2080358A
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US2163591A
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US2252300A
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US2206957A
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US2443500A
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US2434593A
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US2540550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |