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Patent US2810375A successfully refreshed from Google Patents.
US2810375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection pump for internal combustion engines
Assignee: Nordberg Manufacturing Co
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Filing: 1953-04-13
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Granted: 1957-10-22
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Expires: 1973-04-13
Abstract
No abstract record available.
Inventors
- 👤 Froehlich Kurt
- 👤 Leichtfuss Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:08
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/20; F02M59/24; F02M59/26; F02M45/00; F02M45/02; F02M45/04; F02M45/06; F02M59/28; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1388
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2019650A
Cited
GB448175A
Cited
US2223755A
Cited
US2414696A
Cited
US2502989A
Cited
US2544561A
Cited
US2612842A
Cited
US2686503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |