US3218557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver employing phase-locked circuits for multiplexed phase modulated transmission system
Assignee: Space-General Corp
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Filing: 1961-08-23
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Granted: 1965-11-16
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Expires: 1981-08-23
Abstract
No abstract record available.
Inventors
- 👤 Ray W Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:56
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/18; H04L27/22; H04L27/227; H04L27/2275; H04L27/2276
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
IN A SIGNALING SYSTEM, A RECEIVER FOR REPRODUCING FIRST AND SECOND PULSE TRAINS IN RESPONSE TO A PHASE-MODULATED CARRIER SIGNAL APPLIED THERETO AND HAVING CARRIER PHASE SHIFTS OF
Claim 2
Dependent Claim
28 words
IN A SIGNALING SYSTEM, A RECEIVER FOR REPRODUCING FIRST AND SECOND PULSE TRAINS IN RESPONSE TO A PHASE-MODULATED CARRIER SIGNAL APPLIED THERETO AND HAVING CARRIER PHASE SHIFTS OF
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |