Patent US2651454A successfully refreshed from Google Patents.
US2651454A
Expired / Lapsed
US
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Foot pump
Assignee: Individual
•
Filing: 1950-06-07
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Granted: 1953-09-08
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Expires: 1970-06-07
Abstract
No abstract record available.
Inventors
- 👤 Bjurstrom Thure Hjalmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:37
CPC Classifications
F; F04; F04B; F04B33/00; F04B33/005; Y; Y10; Y10S; Y10S417/00; Y10S417/903; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |