Patent US2161774A successfully refreshed from Google Patents.
US2161774A
Expired / Lapsed
US
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Electric lighting socket shock insulator
Assignee: Individual
•
Filing: 1938-07-08
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Granted: 1939-06-06
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Expires: 1958-07-08
Abstract
No abstract record available.
Inventors
- 👤 Cooke Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:51
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/975; H01R33/9753; Y; Y10; Y10S; Y10S439/00; Y10S439/911
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) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |