US3456759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for draining off oil from the valve cover and cooling the cylinder head of an internal combustion engine
Assignee: Automobiles Citroen SA
•
Filing: 1966-03-28
•
Granted: 1969-07-22
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Edmond Henry-Biabaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:24
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/28; F02F1/30; F02F1/34; F01; F01M; F01M9/00; F01M9/10; F01P; F01P3/00; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/24; F02B75/243; F02B75/02; F02B2075/022; F02B2075/027; F02B2275/00; F02B2275/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1408179A
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US1354663A
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US1429014A
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US1529240A
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US1876160A
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US2111242A
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US2381339A
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US2902022A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |