Patent US2942235A successfully refreshed from Google Patents.
US2942235A
Expired / Lapsed
US
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Warning system for automobile lighting circuits
Assignee: Individual
•
Filing: 1957-09-13
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Granted: 1960-06-21
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Warhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:03
CPC Classifications
B; B60; B60Q; B60Q9/00; B60Q9/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2101407A
Cited
US2581338A
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US2759176A
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US2742630A
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US2816191A
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US2756408A
Cited
US2780797A
Cited
US2788514A
Cited
US2816977A
Cited
US2799843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |