US3219875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveform generating circuits
Assignee: Raytheon Co
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Filing: 1963-05-17
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Granted: 1965-11-23
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Robert B Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:52
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/69; H03K4/72; H03K4/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN COMBINATION: A FIRST SOURCE OF SIGNALS HAVING A PREDETERMINED WAVEFORM; A LOAD CONNECTED TO SAID FIRST SIGNAL SOURCE; A SECOND SOURCE OF SIGNALS HAVING A PREDETERMINED WAVEFORM; MEANS FOR COMBINING SAID FIRST AND SECOND SOURCE SIGNALS IN A MANNER TO PROVIDE THE WAVEFORM CHARACTERISTICS OF SAID FIRST SIGNAL SOURCE IN SAID LOAD; MEANS FOR SENSING A DIFFERENCE IN THE WAVEFORM CHARACTERISTICS OF SAID FIRST SOURCE SIGNALS AND SAID LOAD WAVEFORM TO PROVIDE AN ERROR SIGNAL; AND MEANS FOR COMBINING SAID ERROR SIGNAL WITH SAID FIRST SOURCE SIGNAL.
Claim 2
Dependent Claim
88 words
IN COMBINATION: A FIRST SOURCE OF SIGNALS HAVING A PREDETERMINED WAVEFORM; A LOAD CONNECTED TO SAID FIRST SIGNAL SOURCE; A SECOND SOURCE OF SIGNALS HAVING A PREDETERMINED WAVEFORM; MEANS FOR COMBINING SAID FIRST AND SECOND SOURCE SIGNALS IN A MANNER TO PROVIDE THE WAVEFORM CHARACTERISTICS OF SAID FIRST SIGNAL SOURCE IN SAID LOAD; MEANS FOR SENSING A DIFFERENCE IN THE WAVEFORM CHARACTERISTICS OF SAID FIRST SOURCE SIGNALS AND SAID LOAD WAVEFORM TO PROVIDE AN ERROR SIGNAL; AND MEANS FOR COMBINING SAID ERROR SIGNAL WITH SAID FIRST SOURCE SIGNAL.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |