Patent US3268663A successfully refreshed from Google Patents.
US3268663A
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US
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Demultiplexer for carrier wave (e. g., fm stereo signal) whose amplitude at fixed intervals is information-representative
Assignee: Lanteris Space LLC
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Filing: 1963-07-16
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Granted: 1966-08-23
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Bruce G Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:32
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1646; H04B1/1653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SYSTEM FOR DEMULTIPLEXING A CARRIER WAVE WHOSE AMPLITUDE AT FIXED INTERVALS IS INFORMATION-REPRESENTATIVE, COMPRISING: (A) A SOURCE OF A SIGNAL WHOSE PHASE AND FREQUENCY ARE SUCH THAT ITS ZERO INTERCEPTS TEMPORALLY COINCIDE WITH THE INFORMATION-REPRESENTATIVE POINTS OF SAID CARRIER, (B) MEANS FOR ADDITIVELY COMBINING SAID CARRIER AND SAID SIGNAL TO FORM A SYNTHESIZED WAVEFORM,
Claim 2
Independent Claim
55 words
A SYSTEM FOR DEMULTIPLEXING A CARRIER WAVE WHOSE AMPLITUDE AT FIXED INTERVALS IS INFORMATION-REPRESENTATIVE, COMPRISING: (A) A SOURCE OF A SIGNAL WHOSE PHASE AND FREQUENCY ARE SUCH THAT ITS ZERO INTERCEPTS TEMPORALLY COINCIDE WITH THE INFORMATION-REPRESENTATIVE POINTS OF SAID CARRIER, (B) MEANS FOR ADDITIVELY COMBINING SAID CARRIER AND SAID SIGNAL TO FORM A SYNTHESIZED WAVEFORM,
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |