Patent US2612841A successfully refreshed from Google Patents.
US2612841A
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Variable retraction discharge valve for fuel injection pumps
Assignee: LOUIS G SIMMONS
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Filing: 1948-09-29
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Granted: 1952-10-07
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Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert A Lasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:34
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/46; F02M59/462; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US977723A
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US1954662A
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US1919856A
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US2126985A
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GB481807A
Cited
US2178902A
Cited
US2211252A
Cited
US2234936A
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US2382000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |