US2529796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic control apparatus
Assignee: PHOTOSWITCH Inc
•
Filing: 1944-05-12
•
Granted: 1950-11-14
•
Expires: 1964-05-12
Abstract
No abstract record available.
Inventors
- 👤 Phillip J Cade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:01
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013; G05B1/00; G05B1/01; G05B1/02; G05B1/022; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2137419A
Cited
US2138344A
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US2207976A
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US2408819A
Cited
US2316875A
Cited
US2326274A
Cited
US2425733A
Cited
US2413020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |