Patent US1971601A successfully refreshed from Google Patents.
US1971601A
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Pumping and distributing mechanism
Assignee: EVANS APPLIANCE Co
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Filing: 1932-07-30
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Granted: 1934-08-28
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Expires: 1952-07-30
Abstract
No abstract record available.
Inventors
- 👤 Earl W Dilg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:45
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/14; F02; F02D; F02D11/00; F02D11/02; F02M; F02M41/00; F02M41/08; F02M59/00; F02M59/02; F02M59/04; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/08; F16H39/10; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-08-27 | 1938-02-26 | 1938-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-27 | 1942-02-26 | 1942-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-27 | 1946-02-26 | 1946-08-28 | $7700.00 | Window Closed / Lapsed |