US2887677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning control system circuit
Assignee: RADAR RELAY Inc
•
Filing: 1955-05-02
•
Granted: 1959-05-19
•
Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 William C Arrasmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:27
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/024; G08; G08B; G08B25/00; G08B25/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2493548A
Cited
US2600132A
Cited
US2565323A
Cited
US2695400A
Cited
US2709250A
Cited
US2730702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |