US2742634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supervisory circuit for ambient condition detector
Assignee: Republic Aviation Corp
•
Filing: 1953-07-21
•
Granted: 1956-04-17
•
Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 Richard S Bergen
- 👤 Bertram E Sealander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:31
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE647724C
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US2037565A
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US2123220A
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GB534300A
Cited
US2355934A
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US2547011A
Cited
US2456499A
Cited
US2556363A
Cited
US2667630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |