Patent US2107570A successfully refreshed from Google Patents.
US2107570A
Expired / Lapsed
US
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Automatic switch lamp socket
Assignee: George W Borg Corp
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Filing: 1935-12-02
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Granted: 1938-02-08
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Expires: 1955-12-02
Abstract
No abstract record available.
Inventors
- 👤 John W Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:03
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0442; F21V23/0492; B; B60; B60Q; B60Q3/00; B60Q3/20; B60Q3/217; B60Q3/80; Y; Y10; Y10S; Y10S362/00; Y10S362/806; Y10S362/807
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) | 1941-02-07 | 1941-08-09 | 1942-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-07 | 1945-08-09 | 1946-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-07 | 1949-08-09 | 1950-02-08 | $7700.00 | Window Closed / Lapsed |