US2580056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically lighted wall switch plate
Assignee: Individual
•
Filing: 1945-02-19
•
Granted: 1951-12-25
•
Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas L Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:27
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; H01H9/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US959387A
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US1110038A
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US1342744A
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US1698839A
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US2015698A
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US2106144A
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US2113553A
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US2179198A
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US2179199A
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US2214317A
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US2193740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |