Patent US3257567A successfully refreshed from Google Patents.
US3257567A
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Oscilloscope sweep circuit
Assignee: General Atronics Corp
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Filing: 1962-10-12
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Granted: 1966-06-21
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Donald E Kotas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:14
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN OSCILLOSCOPE SWEEP CIRCUIT COMPRISING: VACUUM TUBE MEANS PRODUCTIVE OF A SUBSTANTIALLY CONSTANT CURRENT; BI-STABLE TRANSISTOR MEANS HAVING AT LEAST A BASE AND RESPONSIVE TO THE APPLICATION OF A TRIGGER SIGNAL OF ONE POLARITY TO BECOME CONDUCTING AND OF A TRIGGER SIGNAL OF THE OPPOSITE POLARITY TO BECOMD NON-CONDUCTING; MEANS RESPONSIVE TO CONDUCTION OF SAID TRANSISTOR MEANS TO PROVIDE FOR SAID CURRENT A HIGH IMPEDANCE PATH TO A POINT OF FIXED POTENTIAL AND TO NON-CONDUCTION OF SAID TRANSISTOR MEANS TO PROVIDE A LOW-IMPEDANCE PATH TO SAID POINT; CHARGE STORAGE MEANS SHUNTING SAID PATH PROVIDING MEANSF
Claim 2
Dependent Claim
95 words
AN OSCILLOSCOPE SWEEP CIRCUIT COMPRISING: VACUUM TUBE MEANS PRODUCTIVE OF A SUBSTANTIALLY CONSTANT CURRENT; BI-STABLE TRANSISTOR MEANS HAVING AT LEAST A BASE AND RESPONSIVE TO THE APPLICATION OF A TRIGGER SIGNAL OF ONE POLARITY TO BECOME CONDUCTING AND OF A TRIGGER SIGNAL OF THE OPPOSITE POLARITY TO BECOMD NON-CONDUCTING; MEANS RESPONSIVE TO CONDUCTION OF SAID TRANSISTOR MEANS TO PROVIDE FOR SAID CURRENT A HIGH IMPEDANCE PATH TO A POINT OF FIXED POTENTIAL AND TO NON-CONDUCTION OF SAID TRANSISTOR MEANS TO PROVIDE A LOW-IMPEDANCE PATH TO SAID POINT; CHARGE STORAGE MEANS SHUNTING SAID PATH PROVIDING MEANSF
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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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |