Patent US3258744A successfully refreshed from Google Patents.
US3258744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle traffic control system
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:13
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SYSTEM FOR THE CONTROL OF TRAFFIC CONTROL DEVICES REGULATING TRAFFIC APPROACHING AN INTERSECTION OF AT LEAST TWO STREETS COMPRISING IN COMBINATION, VEHICLE PRESENCE DETECTION MEANS FOR AT LEAST ONE OF SAID STREETS DEFNINING A DETECTION ZONE TRAVERSEDB BY VEHICLES APPROACHING SAID INTERSECTION, SAID DETECTION MEANS GENERATING A SIGNAL IN RESPONSE TO EACH VEHICLE TRAVERSING SAID DETECTION ZONE WHICH SIGNAL HAS A VALUE PROPORTIONALL TO THE TIME SAID VEHICLE OCCUPIES SAID DETECTION ZONE, MEANS RESPONSIVE TO SAID DETECTION MEANS FOR GENERATING A TRAFFIC CONTROL MANIFESTATION HAVING AT LEAST ONE CHARACTEISTIC PROPORTIONAL TO THE RATIO OF THE CUMULATIVE VALUES OF SIGNALS OCCURRING THROUGHOUT ANY GIVEN MEASURING INTERVAL TO THE TOTAL DURATION OF SAID MEASURING INTERVAL AND CONTROL MEANS RESPONSIVE AT LEAST IN PART TO SAID ONE CHARACTERISTIC OF SAID TRAFFIC CONTROL MANIFSTATION FOR CONTROLLING THE DURATION OF AT LEAST ON OF THE TRAFFIC CONTROL INDICATIONS DISPLAYED BY SAID TRAFFIC CONTROL DEVICES AT SAID INTERSECTION.
Claim 2
Independent Claim
153 words
A SYSTEM FOR THE CONTROL OF TRAFFIC CONTROL DEVICES REGULATING TRAFFIC APPROACHING AN INTERSECTION OF AT LEAST TWO STREETS COMPRISING IN COMBINATION, VEHICLE PRESENCE DETECTION MEANS FOR AT LEAST ONE OF SAID STREETS DEFNINING A DETECTION ZONE TRAVERSEDB BY VEHICLES APPROACHING SAID INTERSECTION, SAID DETECTION MEANS GENERATING A SIGNAL IN RESPONSE TO EACH VEHICLE TRAVERSING SAID DETECTION ZONE WHICH SIGNAL HAS A VALUE PROPORTIONALL TO THE TIME SAID VEHICLE OCCUPIES SAID DETECTION ZONE, MEANS RESPONSIVE TO SAID DETECTION MEANS FOR GENERATING A TRAFFIC CONTROL MANIFESTATION HAVING AT LEAST ONE CHARACTEISTIC PROPORTIONAL TO THE RATIO OF THE CUMULATIVE VALUES OF SIGNALS OCCURRING THROUGHOUT ANY GIVEN MEASURING INTERVAL TO THE TOTAL DURATION OF SAID MEASURING INTERVAL AND CONTROL MEANS RESPONSIVE AT LEAST IN PART TO SAID ONE CHARACTERISTIC OF SAID TRAFFIC CONTROL MANIFSTATION FOR CONTROLLING THE DURATION OF AT LEAST ON OF THE TRAFFIC CONTROL INDICATIONS DISPLAYED BY SAID TRAFFIC CONTROL DEVICES AT SAID INTERSECTION.
References Cited (Backward Citations)
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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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |