US3239835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dme with automatic search velocity control
Assignee: Unisys Corp
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Filing: 1963-11-12
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Granted: 1966-03-08
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Robert P Crow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:00
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78; G01S13/785; G01S13/787
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
PULSE RADAR EQUIPMENT COMPRISING A TRANSMITTER, MEANS FOR CAUSING SAID TRANSMITTER TO TRANSMIT PULSES, RECEIVING MEANS FOR RECEIVING RETURN PULSES IN RESPONSE TO SAID TRANSMISSION, MEANS FOR PRODUCING A RANGE GATE WHICH MAY BE VARIED IN TIME WITH RESPECT TO SAID TRANSMITTED PULSES, SEARCH MEANS FOR CAUSING SAID RANGE GATE TO SEARCH RAPIDLY IN RANGE UNTIL IT IS COINCIDENCE IN TIME WITH SAID RETURN PULSES, MEANS RESPONSIVE TO SAID COINCIDENCE FOR CAUSING SAID EQUIPMENT TO TRACK AUTOMATICALLY IN RANGE, AN AUTOMATIC SEARCH VELOCITY CONTROL CIRCUIT TO WHICH OUTPUT PULSES FROM SAID RECEIVING MEANS ARE APPLIED, SAID CONTROL CIRCUIT COMPRISING MEANS RESPONSIVE TO SAID APPLIED PULSES FOR REDUCING THE SPEED OF SAID SEARCHING-RANGE IN RESPONSE TO FADING OR LOSS OF SAID APPLIED PULSES.
Claim 2
Dependent Claim
122 words
PULSE RADAR EQUIPMENT COMPRISING A TRANSMITTER, MEANS FOR CAUSING SAID TRANSMITTER TO TRANSMIT PULSES, RECEIVING MEANS FOR RECEIVING RETURN PULSES IN RESPONSE TO SAID TRANSMISSION, MEANS FOR PRODUCING A RANGE GATE WHICH MAY BE VARIED IN TIME WITH RESPECT TO SAID TRANSMITTED PULSES, SEARCH MEANS FOR CAUSING SAID RANGE GATE TO SEARCH RAPIDLY IN RANGE UNTIL IT IS COINCIDENCE IN TIME WITH SAID RETURN PULSES, MEANS RESPONSIVE TO SAID COINCIDENCE FOR CAUSING SAID EQUIPMENT TO TRACK AUTOMATICALLY IN RANGE, AN AUTOMATIC SEARCH VELOCITY CONTROL CIRCUIT TO WHICH OUTPUT PULSES FROM SAID RECEIVING MEANS ARE APPLIED, SAID CONTROL CIRCUIT COMPRISING MEANS RESPONSIVE TO SAID APPLIED PULSES FOR REDUCING THE SPEED OF SAID SEARCHING-RANGE IN RESPONSE TO FADING OR LOSS OF SAID APPLIED PULSES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |