Patent US3272097A successfully refreshed from Google Patents.
US3272097A
Expired / Lapsed
US
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Traffic intersection
Assignee: International Business Machines Corp
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Filing: 1963-12-09
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Granted: 1966-09-13
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Denos C Gazis
- 👤 Renfrey B Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:34
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
IN A TRAFFIC CONTROL AND ROADWAY SYSTEM CONTROLLING THE FLOW OF CONTINUOUS STREAMS OF TRAFFIC THROUGH AN INTERSECTION, THE ROADWAYS OF SAID INTERSECTION SURROUNDING A FOUR BLOCK MATRIX FORMING FOUR PAIRS OF ADJACENT INTERIOR ROADWAYS, AND FOUR PERIPHERAL ROADWAYS BETWEEN THE CORNERS OF THE MATRIX AND SAID INTERIOR ROADWAYS, THE SYSTEM COMPRISING: TRAFFIC CONTROLLING MEANS LOCATED AT THE OUTER CORNERS OF THE MATRIX FOR DIRECTING TRAFFIC APPROACHING THE CORNERS OF THE MATRIX ALTERNATELY IN A CLOCKWISE DIRECTION ABOUT THE PERIPHERAL ROADS OF THE MATRIX AND THEN IN A COUNTER-CLOCKWISE DIRECTION; AND FOUR ADDITIONAL TRAFFIC CONTROLLING AND GUIDING MEANS EACH LOCATED ALONG A DIFFERENT PAIR OF INTERIOR ROADWAYS FOR DIRECTING AND SWITCHING THE TRAFFIC FROM ONE INTERIOR ROADWAY TO THE OTHER ADJACENT INTERIOR ROADWAY AND VICE VERSA.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |