Patent US2317166A successfully refreshed from Google Patents.
US2317166A
Expired / Lapsed
US
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Pumping device
Assignee: Individual
•
Filing: 1939-08-15
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Granted: 1943-04-20
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Expires: 1959-08-15
Abstract
No abstract record available.
Inventors
- 👤 Victor R Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/04; F02; F02M; F02M59/00; F02M59/12; F02M59/14; F04B17/00; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1323
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) | 1946-04-19 | 1946-10-19 | 1947-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-19 | 1950-10-19 | 1951-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-19 | 1954-10-19 | 1955-04-20 | $7700.00 | Window Closed / Lapsed |