Patent US2075017A successfully refreshed from Google Patents.
US2075017A
Expired / Lapsed
US
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Pump and method of silencing and operating pumps
Assignee: Individual
•
Filing: 1932-04-27
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Granted: 1937-03-30
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Expires: 1952-04-27
Abstract
No abstract record available.
Inventors
- 👤 Benedek Elek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:28
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0452; F04B1/0456; F04B1/06; F04B1/066; F04B1/10; F04B1/107; F04B1/1071; F04B1/1072
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) | 1940-03-29 | 1940-09-28 | 1941-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-29 | 1944-09-28 | 1945-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-29 | 1948-09-28 | 1949-03-30 | $7700.00 | Window Closed / Lapsed |