US2779904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic control system
Assignee: Individual
•
Filing: 1951-05-17
•
Granted: 1957-01-29
•
Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Barron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1944315A
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US1975086A
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US2098913A
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US2120048A
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US2405573A
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US2474354A
Cited
US2558683A
Cited
US2423229A
Cited
US2457790A
Cited
US2535249A
Cited
US2608351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |