Patent US1214290A successfully refreshed from Google Patents.
Patent US3141066A successfully refreshed from Google Patents.
US3141066A
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Double side band, suppressed-carrier, phase shift type telegraph system
Assignee: TDK Micronas GmbH
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Filing: 1960-10-04
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Granted: 1964-07-14
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Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Melvin J Cotterill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:31
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/18; H04L27/22; H04L27/233; H04L27/2334; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H03C1/542; H03C1/545; H03C3/00; H03K; H03K7/00; H03K7/02; H04L27/20; H04L27/2032; H04L27/2035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A TELEGRAPH SYSTEM COMPRISING A SINGLE MODULATOR COUPLED TO TWO SINE WAVE SOURCES TO GENERATE A SIGNAL HAVING A GIVEN PHASE CHARACTERISTIC, A SOURCE OF TELEGRAPH SIGNAL, MEANS COUPLED TO SAID MODULATOR RESPONSIVE TO SAID TELEGRAPH SIGNAL TO MODIFY THE TIME OF OCCURRENCE OF SAID GIVEN PHASE CHARACTERISTIC, MEANS COUPLED TO SAID MODULATOR TO TRANSMIT SAID MODIFIED SIGNAL TO A REMOTE POINT, MEANS AT SAID REMOTE POINT RESPONSIVE TO A GIVEN CHAR-
Claim 2
Dependent Claim
72 words
A TELEGRAPH SYSTEM COMPRISING A SINGLE MODULATOR COUPLED TO TWO SINE WAVE SOURCES TO GENERATE A SIGNAL HAVING A GIVEN PHASE CHARACTERISTIC, A SOURCE OF TELEGRAPH SIGNAL, MEANS COUPLED TO SAID MODULATOR RESPONSIVE TO SAID TELEGRAPH SIGNAL TO MODIFY THE TIME OF OCCURRENCE OF SAID GIVEN PHASE CHARACTERISTIC, MEANS COUPLED TO SAID MODULATOR TO TRANSMIT SAID MODIFIED SIGNAL TO A REMOTE POINT, MEANS AT SAID REMOTE POINT RESPONSIVE TO A GIVEN CHAR-
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |