US2567513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well pumping system
Assignee: Vernon Tool Co Ltd
•
Filing: 1945-07-02
•
Granted: 1951-09-11
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 Marcus W Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; F; F04; F04B; F04B47/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1437939A
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US1569731A
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US1530624A
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US1554691A
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US1597161A
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US1738136A
Cited
US2018700A
Cited
US2530673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |