Patent US3200375A successfully refreshed from Google Patents.
US3200375A
Expired / Lapsed
US
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Keyboard for controlling signal generator having means for changing key designations
Assignee: Raytheon Co
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Filing: 1961-09-05
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Granted: 1965-08-10
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Samuel G Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/16; G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0238; H03; H03M; H03M11/00; H03M11/22; H01; H01H; H01H2219/00; H01H2219/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A MESSAGE GENERATOR COMPRISING: FIRST MEANS HAVING A PLURALITY OF KEYS PROVIDING DIFFERENT CODED OUTPUT SIGNALS IN RESPONSE TO OPERATION OF DIFFERENT ONES OFSAID KEYS; SECOND MEANS ASSOCIATED WITH SAID KEYS FOR PROVIDING CHANGEABLE VISUAL KEY DESIGNATIONS IN RESPONSE TO APPLIED ELECTRICAL SIGNALS; AND THIRD MEANS COUPLED TO SAID FIRST AND SECOND MEANS FOR PROVIDING SAID ELECTRICAL SIGNALS TO SAID SECOND MEANS IN RESPONSE TO SAID OUTPUT SIGNALS FROM SAID FIRST MEANS, SAID THIRD MEANS IN ITIALLY PROVIDING A SIGNAL TO SAID SECOND MEANS IN RESPONSE TO THE INTIAL OPERATION OF ONE OF SAID KEYS CORRESPONDING TO A SELECTED SEQUENCE TO CHANGE SAID KEY DESIGNATIONS TO
Claim 2
Dependent Claim
106 words
A MESSAGE GENERATOR COMPRISING: FIRST MEANS HAVING A PLURALITY OF KEYS PROVIDING DIFFERENT CODED OUTPUT SIGNALS IN RESPONSE TO OPERATION OF DIFFERENT ONES OFSAID KEYS; SECOND MEANS ASSOCIATED WITH SAID KEYS FOR PROVIDING CHANGEABLE VISUAL KEY DESIGNATIONS IN RESPONSE TO APPLIED ELECTRICAL SIGNALS; AND THIRD MEANS COUPLED TO SAID FIRST AND SECOND MEANS FOR PROVIDING SAID ELECTRICAL SIGNALS TO SAID SECOND MEANS IN RESPONSE TO SAID OUTPUT SIGNALS FROM SAID FIRST MEANS, SAID THIRD MEANS IN ITIALLY PROVIDING A SIGNAL TO SAID SECOND MEANS IN RESPONSE TO THE INTIAL OPERATION OF ONE OF SAID KEYS CORRESPONDING TO A SELECTED SEQUENCE TO CHANGE SAID KEY DESIGNATIONS TO
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |