Patent US3486488A successfully refreshed from Google Patents.
US3486488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston internal combustion engine with a cooling water circulatory system produced by a water pump
Assignee: Daimler Benz AG
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Filing: 1966-07-25
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Granted: 1969-12-30
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Horst Frings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:22
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/06; F01P3/00; F01P3/18; F01P2011/066; F01P2060/00; F01P2060/04; F01P3/20; F01P5/00; F01P5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443006A
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US1476327A
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US1877051A
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US2038193A
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US2059916A
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US2133514A
Cited
US2262659A
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US2369105A
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US2345233A
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US2377028A
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US3139073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |