US2566260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control
Assignee: PHOTOSWITCH Inc
•
Filing: 1946-04-10
•
Granted: 1951-08-28
•
Expires: 1966-04-10
Abstract
No abstract record available.
Inventors
- 👤 Thomson Elihu Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:07
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; G05D; G05D9/00; G05D9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306525A
Cited
AT96238B
Cited
US1784205A
Cited
US2001557A
Cited
US2078479A
Cited
US2110313A
Cited
US2078688A
Cited
US2364532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |