US3249943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channel combiner for space surveillance system
Assignee: Individual
•
Filing: 1963-09-30
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Granted: 1966-05-03
•
Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Maxime G Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:17
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/46; G01S3/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A SATELLITE SURVEILLANCE SYSTEM WHICH INCLUDES A RADIO INTERFEROMETER AND A SOURCE WHICH PRODUCES A REFERENCE SIGNAL; MODULATING MEANS CONNECTED TO RECEIVE A PLURALITY OF SIGNALS FROM SAID RATIO INTERFEROMETER AND A PLURALITY OF STABLE, FREQUENCY-MULTIPLIED SIGNALS FROM SAID REFERENCE SIGNAL SOURCE, SAID MODULATING MEANS INCLUDING SUCCESSIVE STAGES OF MODULATING WHEREIN EACH STAGE AFTER THE FIRST HAS A LESSER NUMBER OF MODULATORS THAN THE PRECEDING STAGE AND THE LAST STAGE PRODUCES A SINGLE SIGNAL HAVING THE SAME FREQUENCY AS SAID REFERENCE SIGNAL, AND
Claim 2
Dependent Claim
84 words
IN A SATELLITE SURVEILLANCE SYSTEM WHICH INCLUDES A RADIO INTERFEROMETER AND A SOURCE WHICH PRODUCES A REFERENCE SIGNAL; MODULATING MEANS CONNECTED TO RECEIVE A PLURALITY OF SIGNALS FROM SAID RATIO INTERFEROMETER AND A PLURALITY OF STABLE, FREQUENCY-MULTIPLIED SIGNALS FROM SAID REFERENCE SIGNAL SOURCE, SAID MODULATING MEANS INCLUDING SUCCESSIVE STAGES OF MODULATING WHEREIN EACH STAGE AFTER THE FIRST HAS A LESSER NUMBER OF MODULATORS THAN THE PRECEDING STAGE AND THE LAST STAGE PRODUCES A SINGLE SIGNAL HAVING THE SAME FREQUENCY AS SAID REFERENCE SIGNAL, AND
References Cited (Backward Citations)
US3012244A
Cited
US2781450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |