US3202873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition timing control for piezoelectric engine ignition systems
Assignee: Standard Oil Co
•
Filing: 1962-03-09
•
Granted: 1965-08-24
•
Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:39
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3043980A
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |