Patent US1887965A successfully refreshed from Google Patents.
US2966044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator for flow-responsive refrigeration valve
Assignee: John E Mitchell Co
•
Filing: 1956-12-21
•
Granted: 1960-12-27
•
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 08:51
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734346A
Cited
US1780442A
Cited
US2155516A
Cited
US2215327A
Cited
US2532568A
Cited
US2618290A
Cited
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 |