Patent US2654006A successfully refreshed from Google Patents.
US2654006A
Expired / Lapsed
US
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Light switch unit
Assignee: Individual
•
Filing: 1950-09-18
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Granted: 1953-09-29
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Expires: 1970-09-18
Abstract
No abstract record available.
Inventors
- 👤 Wilmer H Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:25
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; H; H01; H01R; H01R33/00; H01R33/945; H01R33/955
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1208540A
Cited
US1832857A
Cited
FR735753A
Cited
US2167458A
Cited
US2334538A
Cited
US2341837A
Cited
US2453035A
Cited
US2576836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |