Patent US1597162A successfully refreshed from Google Patents.
US1597162A
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Valve head for oil-operated well pumps
Assignee: ALTA VISTA HYDRAULIC Co
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Filing: 1924-12-26
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Granted: 1926-08-24
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Expires: 1944-12-26
Abstract
No abstract record available.
Inventors
- 👤 Lewis M Kellogg
- 👤 Arthur G Gage
- 👤 Charles H Mcwilliams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/063; F03; F03C; F03C1/00; F03C1/013; F03C1/0135; F04; F04B; F04B9/00; F04B9/08; F04B9/10; F04B9/103; F04B9/107; F04B9/1073
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) | 1929-08-23 | 1930-02-22 | 1930-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-08-23 | 1934-02-22 | 1934-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-08-23 | 1938-02-22 | 1938-08-24 | $7700.00 | Window Closed / Lapsed |