US3440490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition circuits
Assignee: Lucas Support Services Ltd
•
Filing: 1966-02-09
•
Granted: 1969-04-22
•
Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 Norman Arthur Parish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
F; F02; F02P; F02P9/00; F02P9/002; F02P9/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB929070A
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US2175900A
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US2476773A
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US2889480A
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US2834917A
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US3052817A
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US2938147A
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US3030548A
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US3213258A
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US3267329A
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US3376470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |