US2636166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing deviation indication system
Assignee: RCA Corp
•
Filing: 1947-09-10
•
Granted: 1953-04-21
•
Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Philip J Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2421017A
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US2406751A
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US2535038A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |