US3523592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine lubrication system
Assignee: Kohler Co
•
Filing: 1968-07-26
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Granted: 1970-08-11
•
Expires: 1988-07-26
Abstract
No abstract record available.
Inventors
- 👤 Alvin P Fenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:37
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/007; F01; F01M; F01M1/00; F01M1/04; F01M13/00; F01M13/0011; F02B75/16; F01M13/0033; F01M1/12; F01M2001/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1871760A
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US2128065A
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US2137220A
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US3144095A
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US3195526A
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US3318644A
Cited
US3367447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |