US3274598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directive response transponder system
Assignee: Individual
•
Filing: 1964-02-26
•
Granted: 1966-09-20
•
Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Claud E Cleeton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:44
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A TRANSPONDER SYSTEM COMPRISING: CONTROL STATION MEANS INCLUDING A RECEIVER AND A TRANSMITTER FOR TRANSMITTING A FIRST ELECTRICAL SIGNAL HAVING CERTAIN CHARACTERISTICS; A TRANSPONDER UNIT LOCATED ON A VEHICLE; AN ARRAY OF DIRECTIONAL ANTENNAS AND DIRECTIONAL CONTROL MEANS INCLUDED IN SAID TRANSPONDER UNIT, SAID DIRECTIONAL CONTROL MEANS BEING OPERATIVELY COUPLED TO SAID ARRAY TO MAINTAIN SAID ARRAY IN A PREDETERMINED SPATIAL ORIENTATION; SIGNAL GENERATOR MEANS INCLUDED IN SAID TRANSPONDER UNIT AND RESPONSIVE TO SOME OF SAID CERTAIN CHARACTERISTICS OF SAID FIRST SIGNAL TO GENERATE A SECOND SIGNAL AND ANTENNA CONTROL MEANS INCLUDED IN SAID TRANSPONDER UNIT AND RESPONSIVE TO OTHER OF SAID CERTAIN CHARACTERISTICS OF SAID FIRST SIGNAL TO CAUSE SAID SECOND SIGNAL TO BE TRANSMITTED BY ONLY A SELECTED ONE ANTENNA OF SAID ARRAY.
Claim 2
Dependent Claim
125 words
A TRANSPONDER SYSTEM COMPRISING: CONTROL STATION MEANS INCLUDING A RECEIVER AND A TRANSMITTER FOR TRANSMITTING A FIRST ELECTRICAL SIGNAL HAVING CERTAIN CHARACTERISTICS; A TRANSPONDER UNIT LOCATED ON A VEHICLE; AN ARRAY OF DIRECTIONAL ANTENNAS AND DIRECTIONAL CONTROL MEANS INCLUDED IN SAID TRANSPONDER UNIT, SAID DIRECTIONAL CONTROL MEANS BEING OPERATIVELY COUPLED TO SAID ARRAY TO MAINTAIN SAID ARRAY IN A PREDETERMINED SPATIAL ORIENTATION; SIGNAL GENERATOR MEANS INCLUDED IN SAID TRANSPONDER UNIT AND RESPONSIVE TO SOME OF SAID CERTAIN CHARACTERISTICS OF SAID FIRST SIGNAL TO GENERATE A SECOND SIGNAL AND ANTENNA CONTROL MEANS INCLUDED IN SAID TRANSPONDER UNIT AND RESPONSIVE TO OTHER OF SAID CERTAIN CHARACTERISTICS OF SAID FIRST SIGNAL TO CAUSE SAID SECOND SIGNAL TO BE TRANSMITTED BY ONLY A SELECTED ONE ANTENNA OF SAID ARRAY.
References Cited (Backward Citations)
US2152329A
Cited
US2401759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |