Patent US2133494A successfully refreshed from Google Patents.
US2133494A
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US
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Wirelessly energized electrical appliance
Assignee: Individual
•
Filing: 1936-10-24
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Granted: 1938-10-18
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Expires: 1956-10-24
Abstract
No abstract record available.
Inventors
- 👤 Harry F Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/105; D; D06; D06F; D06F81/00; D06F81/08; F; F21; F21V; F21V23/00; F21V23/02; H01; H01F; H01F27/00; H01F27/40; H01F38/00; H01F38/14; H05B6/12; H05B6/1209; H05B6/1236; Y; Y02; Y02B; Y02B40/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-10-17 | 1942-04-18 | 1942-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-17 | 1946-04-18 | 1946-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-17 | 1950-04-18 | 1950-10-18 | $7700.00 | Window Closed / Lapsed |