US3500404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar system having improved response to small targets
Assignee: Boeing North American Inc
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Filing: 1965-02-03
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Granted: 1970-03-10
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Expires: 1985-02-03
Abstract
No abstract record available.
Inventors
- 👤 James Orville Anderson
- 👤 Donald D Coleman
- 👤 Brice E Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/106; G01S13/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
IN A PULSED RADAR SYSTEM HAVING A PULSED TRANSMITTER AND RECEIVER MEANS FOR ENHANCING THE RESPONSE OF SAID RADAR SYSTEM TO SMALL TARGETS RELATIVE TO THAT FOR LARGE TARGETS COMPRISING PULSE-TO-PULSE FREQUENCY AGILITY MEANS FOR DISCRETELY VARYING THE CARRIER FREQUENCY OF SAID PULSED TRANSMITTER TO PROVIDE WITHIN A PRESELECTED NUMBER OF PULSE REPETITION PERIODS A TOTAL TRANSMITTED CARRIER FREQUENCY BANDWIDTH OF N DISCRETE CARRIER FREQUENCIES WHICH IS GREATER THAN THE MULTIPLE (N-1) F THAT BANDWIDTH REPRESENTED BY THE RECIPROCAL OF THE PULSEWIDTH OF SAID PULSED TRANSMITTER;
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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |