Patent US3267424A successfully refreshed from Google Patents.
US3267424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic actuated control system
Assignee: Laboratory For Electronics Inc
•
Filing: 1964-01-02
•
Granted: 1966-08-16
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Peter C Brockett
- 👤 Vivier Charles L Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:39
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A TRAFFIC SIGNAL CONTROLLER INCLUDING SIGNAL CIRCUITS, ELECTRICAL TIMING MEANS PROVIDING AN ELECTRICAL OUTPUT SIGNAL ON COMPLETION OF TIME PERIOD AND HAVING PLURAL TIME CONTROL CIRCUIT FOR SETTING DIFFERENT TIMES FOR SAID TIME PERIOD, A MULTISTAGE ELECTRICAL SEQUENCE SWITCHING CIRCUIT INCLUDING A CASCADED SERIES OF ELECTRONIC SWITCHING ELEMETS COUPLED TO PROVIDE A CYCLE OF STEPS AND TO BE ADVANCED STEP-BY-STEP IN RESPONSE TO INPUT PULSES MEANS FOR COUPLING SAID MULTI-STAGE CIRUIT TO DIFFERENT ONES OF SAID TIME CONTROL CIRCUITS OF SAID TIMING MEANS IN DIFFERENT STEPS CYCLE FOR PROVIDING INDIVIDUAL TIMING IN SAID DIFFERENT STEPS, FIG-01 MEANS FOR COUPLING SAID TIMING MEANS TO SAID MULTISTAGE CIRCUIT TO PROVIDE SAID POINT PULSES FROM SAID OUTPUT SIGNALS FOR SO ADVANCING SAID MULTISTAGE CIRCUIT FROM ONE STEP TO ANOTHER IN SAID CYCLE IN RESPONSE TO COMPLETION OF TIMING IN SAID ONE STEP, MEANS FOR RESETTING SAID TIMING MEANS UPON SUCH ADVANCE IN SO TIMING SAID STEPS AND MEANS FOR COUPLING SAID MULTISTAGE SWITCHING CIRCUIT TO SAID SIGNAL CIRCUIT FOR CONTROLLING THE LATTER IN THE SEVERAL STEPS OF SUCH CYCLE.
Claim 2
Dependent Claim
176 words
A TRAFFIC SIGNAL CONTROLLER INCLUDING SIGNAL CIRCUITS, ELECTRICAL TIMING MEANS PROVIDING AN ELECTRICAL OUTPUT SIGNAL ON COMPLETION OF TIME PERIOD AND HAVING PLURAL TIME CONTROL CIRCUIT FOR SETTING DIFFERENT TIMES FOR SAID TIME PERIOD, A MULTISTAGE ELECTRICAL SEQUENCE SWITCHING CIRCUIT INCLUDING A CASCADED SERIES OF ELECTRONIC SWITCHING ELEMETS COUPLED TO PROVIDE A CYCLE OF STEPS AND TO BE ADVANCED STEP-BY-STEP IN RESPONSE TO INPUT PULSES MEANS FOR COUPLING SAID MULTI-STAGE CIRUIT TO DIFFERENT ONES OF SAID TIME CONTROL CIRCUITS OF SAID TIMING MEANS IN DIFFERENT STEPS CYCLE FOR PROVIDING INDIVIDUAL TIMING IN SAID DIFFERENT STEPS, FIG-01 MEANS FOR COUPLING SAID TIMING MEANS TO SAID MULTISTAGE CIRCUIT TO PROVIDE SAID POINT PULSES FROM SAID OUTPUT SIGNALS FOR SO ADVANCING SAID MULTISTAGE CIRCUIT FROM ONE STEP TO ANOTHER IN SAID CYCLE IN RESPONSE TO COMPLETION OF TIMING IN SAID ONE STEP, MEANS FOR RESETTING SAID TIMING MEANS UPON SUCH ADVANCE IN SO TIMING SAID STEPS AND MEANS FOR COUPLING SAID MULTISTAGE SWITCHING CIRCUIT TO SAID SIGNAL CIRCUIT FOR CONTROLLING THE LATTER IN THE SEVERAL STEPS OF SUCH CYCLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |