US2890689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle and ignition control for internal combustion engines
Assignee: Kiekhaefer Corp
•
Filing: 1957-04-22
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Granted: 1959-06-16
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Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Charles F Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:32
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/05; F02D; F02D1/00; F02D2700/00; F02D2700/10; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1611054A
Cited
US1766867A
Cited
US2069931A
Cited
US2094860A
Cited
FR787262A
Cited
US2103348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |