US3067324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric lamps
Assignee: Individual
•
Filing: 1961-01-06
•
Granted: 1962-12-04
•
Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 William C Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:07
CPC Classifications
F; F21; F21L; F21L4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2459702A
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US2494265A
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US2613314A
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US2896067A
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US2804541A
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US2817754A
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US2806100A
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US2931894A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |