US3091764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticollision system for ships and planes
Assignee: Individual
•
Filing: 1956-12-21
•
Granted: 1963-05-28
•
Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/933
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
A METHOD OF AVOIDING COLLISION BETWEEN A PLURALITY CRAFT COMPRISING RANDOMLY TRANSMITTING FROM EACH CRAFT A RADIO SIGNAL OF IDENTICAL FREQUENCY, COMPRISING THE STEPS OF ALTERING SUCH SIGNAL AS RECEIVED IN RESPONSE TO A FIRST ANGLE BETWEEN THE REFERENCE LINE OF THE TRANSMITTING CRAFT AND A LINE BETWEEN THE TRANSMITTING CRAFT AND THE RECEIVING CRAFT, RECEIVING SAID SIGNAL AND CONBINING IT WITH A LOCAL SIGNAL INDICATIVE OF A SECOND ANGLE BETWEEN THE REFERENCE LINE OF THE RECEIVING CRAFT AND THE LINE BETWEEN THE TRANSMITTING CRAFT AND RECEIVING CRAFT AND PROCESSING SAID SIGNALS SO AS TO DISPLAY BOTH SAID ANGLES.
References Cited (Backward Citations)
US1801466A
Cited
US1933248A
Cited
US1983079A
Cited
US1922677A
Cited
US2157122A
Cited
US2457199A
Cited
US2621306A
Cited
US2519418A
Cited
US2568568A
Cited
US2590230A
Cited
US2555143A
Cited
US2720582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |