Patent US2531901A successfully refreshed from Google Patents.
US2531901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cigar lighter
Assignee: Cuno Engineered Products Inc
•
Filing: 1946-07-25
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Granted: 1950-11-28
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Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Philip E Ashton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:48
CPC Classifications
F; F23; F23Q; F23Q7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2210025A
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US2215771A
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US2237250A
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US2269507A
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US2248402A
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US2363645A
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US2180069A
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US2244234A
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US2338565A
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US2473890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |