US3481314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for optimizing the performance of internal combustion engines
Assignee: GEORGES G LECRENN
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Filing: 1967-08-29
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Granted: 1969-12-02
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Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Georges G Lecrenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:28
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/08; F16H25/10; F01; F01L; F01L13/00; F01L13/0015; F01L13/0036; F01L13/0042; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |