Patent US2796490A successfully refreshed from Google Patents.
US2796490A
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Electromagnetic flasher
Assignee: Tung Sol Electric Inc
•
Filing: 1952-12-05
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Granted: 1957-06-18
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Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Albert W Stoltey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:28
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/06; H01H61/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE312962C
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US2172666A
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US1558331A
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US2103276A
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US2103277A
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US2280281A
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US2319241A
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US2440265A
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US2503303A
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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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |