US3234330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shift signalling system
Assignee: NOLLER CONTROL SYSTEMS Inc
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Filing: 1961-03-14
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Granted: 1966-02-08
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Lee Bock Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/18; H04L27/22; H04L27/233; H04L27/2331; H04L27/20; H04L27/2032; H04L27/2035; H04L27/2042; H04L27/2046
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A PHASE SHIFT SIGNALLING SYSTEM COMPRISING MEANS INCLUDING AN OSCILLATOR FOR FURNISHING AN ALTERNATING CARRIER, MEANS FOR GENERATING A FIRST SUCCESSION OF PULSES EACH DIFFERING FROM THE IMMEDIATELY PRECEDING PULSE BY ONE HUNDRED EIGHTY DEGREES, MEANS FOR GENERATING A SECOND SECCESSION OF PULSES EACH SHIFTED FROM THE IMMEDIATELY PRECEDING PULSE ALTERNATELY BY NINETY DEGREES FORWARDLY AND THEN BY NINETY DEGREES BACKWARDLY, AND MEANS FOR SIMULTANEOUSLY IMPRESSING ON SAID CARRIER COMBINED PULSES MADE BY JOINING PULSES FROM SAID FIRST SECCESSION WITH SELECTED ONES OF SAID SHIFTED PULSES FROM SECOND SUCCESSION.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |