US3229283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direction finding and distance measuring system
Assignee: Maxson Electronics Corp
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Filing: 1961-10-27
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Granted: 1966-01-11
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Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Hefter Murray
- 👤 Frank J Scire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:56
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
FOR USE IN A RADIANT ENERGY SYSTEM WHEREIN THE TRANSMITTED ENERGY MAY BE SUBJECTED TO REFLECTING SURFACES, A RECEIVER ADAPTED TO DISCRIMINATE BETWEEN THE DIRECT AND REFLECTED WAVES, SAID RECEIVER INCLUDING ANTENNA MEANS HAVING TWO RADIATION RECEIVING PATTERNS, THE FIRST OF SAID PATTERNS COMPRISING A MAIN LOBE WITH AN AXIS EXTENDING IN ONE DIRECTION AND SAID SECOND PATTERN HAVING TWO LOBES WITH A NULL THEREBETWEEN IN SAID DIRECTION, POSITIONING MEANS RESPONSIVE TO THE MAXIMUM AMPLITUDE
Claim 2
Dependent Claim
75 words
FOR USE IN A RADIANT ENERGY SYSTEM WHEREIN THE TRANSMITTED ENERGY MAY BE SUBJECTED TO REFLECTING SURFACES, A RECEIVER ADAPTED TO DISCRIMINATE BETWEEN THE DIRECT AND REFLECTED WAVES, SAID RECEIVER INCLUDING ANTENNA MEANS HAVING TWO RADIATION RECEIVING PATTERNS, THE FIRST OF SAID PATTERNS COMPRISING A MAIN LOBE WITH AN AXIS EXTENDING IN ONE DIRECTION AND SAID SECOND PATTERN HAVING TWO LOBES WITH A NULL THEREBETWEEN IN SAID DIRECTION, POSITIONING MEANS RESPONSIVE TO THE MAXIMUM AMPLITUDE
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |