Patent EP0186947A1 successfully refreshed from Google Patents.
US2270146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well pump
Assignee: Individual
•
Filing: 1940-03-13
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Granted: 1942-01-13
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Expires: 1960-03-13
Abstract
No abstract record available.
Inventors
- 👤 Steele Jesse Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/04; F04D7/045; Y; Y10; Y10S; Y10S415/00; Y10S415/901; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703; Y10T137/8593; Y10T137/85978
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) | 1945-01-12 | 1945-07-14 | 1946-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-12 | 1949-07-14 | 1950-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-12 | 1953-07-14 | 1954-01-13 | $7700.00 | Window Closed / Lapsed |