US3431901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic ignition circuit
Assignee: Individual
•
Filing: 1966-09-28
•
Granted: 1969-03-11
•
Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 William Paul Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:59
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3087001A
Cited
US3213320A
Cited
US3331362A
Cited
US3320939A
Cited
US3273014A
Cited
US3363615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |