US3564495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedestrian traffic control signal unit
Assignee: Display Technologies LLC
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Filing: 1968-05-01
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Granted: 1971-02-16
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Expires: 1988-05-01
Abstract
Abstract AN IMPROVED PEDESTRAIN TRAFFIC CROSSWALK CONTROL SIGNAL UNIT OF THE "WALK/DON''T WALK" TYPE IS PROVIDED, WHICH CONFORMS IN ALL RESPECTS WITH NATIONAL SAFETY STANDARDS, AND YET WHICH IS LESS BULKY IN ITS CONSTRUCTION THAN THE PRIOR ART SIGNAL UNITS, LESS EXPENSIVE TO BUILD, AND EASIER TO SHIP WITHOUT BREAKAGE.
Inventors
- 👤 Samuel Gould
- 👤 James S Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:36
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |