Patent US2903014A successfully refreshed from Google Patents.
US2903014A
Expired / Lapsed
US
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Check valve for diesel engine fuel pump
Assignee: Individual
•
Filing: 1953-12-04
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Granted: 1959-09-08
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Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Richard H Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:20
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/46; F02M59/462; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; F16K2200/00; F16K2200/30; F16K2200/305; F16K2200/3053; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB459662A
Cited
US1102066A
Cited
US1896706A
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US2051100A
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US2332787A
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US2386765A
Cited
US2641278A
Cited
US2762602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |