Patent US3020904A successfully refreshed from Google Patents.
US3020904A
Expired / Lapsed
US
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Transistor ignition system
Assignee: Holley Performance Products Inc
•
Filing: 1958-10-20
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Granted: 1962-02-13
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Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Fred S Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:58
CPC Classifications
F; F02; F02P; F02P15/00; F02P15/12; Y; Y10; Y10S; Y10S74/00; Y10S74/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2723654A
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US2769021A
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US2888914A
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US2090365A
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US2550026A
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US2684666A
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US2878298A
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US2807729A
Cited
FR1137949A
Cited
US2846992A
Cited
FR1170981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |