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US2966044A
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Regulator for flow-responsive refrigeration valve
Assignee: John E Mitchell Co
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Filing: 1956-12-21
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Granted: 1960-12-27
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Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Orville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:24
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3205; B60H1/3211; B60H1/00485; B60H2001/3236; B60H2001/3248; B60H2001/3252; B60H2001/3269; B60H2001/328; B60H2001/3283; B60H2001/3285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734346A
Cited
US1780442A
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US2155516A
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US2215327A
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US2532568A
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US2618290A
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US2766593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |