US2804825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delivery valves for fuel injection pumps
Assignee: British Internal Combustion Engine Research Institute
•
Filing: 1951-11-13
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Granted: 1957-09-03
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Expires: 1971-11-13
Abstract
No abstract record available.
Inventors
- 👤 Mansfield Wilfred Percival
- 👤 Thornycroft Christopher Hamo
- 👤 Priede Teodors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:27
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/46; F02M59/462; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0406; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7866; Y10T137/7867
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |