US3090032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic traffic signalling systems
Assignee: ASS ELECT IND MANCHESTER Ltd
•
Filing: 1957-08-27
•
Granted: 1963-05-14
•
Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Shand George
- 👤 Atkinson George Geoffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:49
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1817754A
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US1723062A
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US1948710A
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US2126144A
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US2665417A
Cited
GB719121A
Cited
US2832060A
Cited
US2826752A
Cited
US2761119A
Cited
US2832071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |