US2489806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand flashlight
Assignee: Oliver Pell Control Ltd
•
Filing: 1944-08-30
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Granted: 1949-11-29
•
Expires: 1964-08-30
Abstract
No abstract record available.
Inventors
- 👤 Oliver George Francis Norris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:34
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1398799A
Cited
US1588515A
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US1621610A
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US1676849A
Cited
US1674650A
Cited
US1849506A
Cited
US1986281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |