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US2776348A
Expired / Lapsed
US
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Electrical switches
Assignee: Individual
•
Filing: 1952-04-26
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Granted: 1957-01-01
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Boris V Korry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:42
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/44; H01H15/00; H01H15/02; H01H15/06; H01H15/16; H01H15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT119716B
Cited
US1807398A
Cited
US1890822A
Cited
US1863523A
Cited
US1965125A
Cited
US2373889A
Cited
US2574290A
Cited
US2521561A
Cited
US2627006A
Cited
US2672531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |