US2657366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for facilitating the removal of a lamp from its socket
Assignee: DE VRY Corp
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Filing: 1952-10-31
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Granted: 1953-10-27
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 George F Krtous
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:25
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/46; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |