Patent US4370982A successfully refreshed from Google Patents.
Patent US3105967A successfully refreshed from Google Patents.
US3105967A
Expired / Lapsed
US
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Velocity measuring radar apparatus for high speed vehicles
Assignee: Unisys Corp
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Filing: 1959-01-12
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Granted: 1963-10-01
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Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 Charles E Cook
- 👤 John E Chin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/282; H; H01; H01Q; H01Q3/00; H01Q3/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A RADAR SYSTEM COMPRISING MEANS FOR TRANSMITTING FREQUENCY MODULATED PULSED CARRIER SIGNALS, MEANS FOR RECEIVING TARGET ECHO PULSES, FIRST AND SECOND FILTER MEANS EACH BEING COUPLED TO THE OUTPUT OF SAID RECEIVING MEANS, EACH SAID FILTER MEANS INTRODUCING A DIFFERENT TIME DELAY IN THE ECHO PULSE RESPECTIVELY APPLIED THERETO, AND MEANS COUPLED TO THE OUTPUTS OF BOTH SAID FILTER MEANS FOR DETERMINING THE TIME DIFFERENCE BETWEEN CORRESPONDING ONES OF THE PULSES ISSUING FROM SAID FILTERS.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |