US2985869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning apparatus
Assignee: RADAR RELAY Inc
•
Filing: 1958-07-28
•
Granted: 1961-05-23
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 William C Arrasmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:48
CPC Classifications
G; G08; G08B; G08B25/00; Y; Y10; Y10S; Y10S40/00; Y10S40/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1919114A
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US2710910A
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US2703875A
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US2686908A
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US2907872A
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US2877584A
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US2890445A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |