US3430240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency modulated pulse transmission and reception devices utilizing electro-optical transduction
Assignee: United States Department of the Army
•
Filing: 1961-07-05
•
Granted: 1969-02-25
•
Expires: 1981-07-05
Abstract
No abstract record available.
Inventors
- 👤 Buchanan Loesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PULSE EXPANSION-COMPRESSION UNIT COMPRISING A SOLID MEDIUM PROVIDING A PATH BETWEEN AN ENTRANCE FACE AND AN EXIT FACE, A SOURCE OF CIRCULARLY POLARIZED RADIATION AT SAID ENTRANCE FACE, A MASK ASSOCIATED WITH SAID EXIT FACE, SAID MASK PROVIDING A SERIES OF OPENINGS OF VARYING SEQUENTIAL SPACING, TRANSDUCING MEANS FOR GENERATING A TRAVELLING WAVE THROUGH SAID MEDIUM IN ORDER TO CONVERT SAID CIRCULARLY POLARIZED RADIATION TO LINEARLY POLARIZED RADIATION, ANALYZING MEANS AT SAID EXIT FACE FOR ATTENUATING SAID LINEARLY POLARIZED RADIATION, AND DETECTING MEAN FOR RECEIVING SAID LINEARLY POLARIZED RADIATION FROM SAID ANALYZING MEANS, SAID TRANSDUCING MEANS INCLUDING A FIRST ELECTRO-ACOUSTIC TRANSDUCER AND
Claim 2
Dependent Claim
103 words
A PULSE EXPANSION-COMPRESSION UNIT COMPRISING A SOLID MEDIUM PROVIDING A PATH BETWEEN AN ENTRANCE FACE AND AN EXIT FACE, A SOURCE OF CIRCULARLY POLARIZED RADIATION AT SAID ENTRANCE FACE, A MASK ASSOCIATED WITH SAID EXIT FACE, SAID MASK PROVIDING A SERIES OF OPENINGS OF VARYING SEQUENTIAL SPACING, TRANSDUCING MEANS FOR GENERATING A TRAVELLING WAVE THROUGH SAID MEDIUM IN ORDER TO CONVERT SAID CIRCULARLY POLARIZED RADIATION TO LINEARLY POLARIZED RADIATION, ANALYZING MEANS AT SAID EXIT FACE FOR ATTENUATING SAID LINEARLY POLARIZED RADIATION, AND DETECTING MEAN FOR RECEIVING SAID LINEARLY POLARIZED RADIATION FROM SAID ANALYZING MEANS, SAID TRANSDUCING MEANS INCLUDING A FIRST ELECTRO-ACOUSTIC TRANSDUCER AND
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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |