Patent EP0334761A1 successfully refreshed from Google Patents.
US3331968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed gating circuit
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1964-08-24
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Granted: 1967-07-18
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 John J Hickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
G; G03; G03B; G03B39/00; G03B39/005; H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; H03K3/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A RECTANGULAR PLUSE GENERATING CIRCUIT, COMPRISING: A FIRST CAPACITOR; MEANS FOR CHARGING SAID FIRST CAPACITOR TO A PERDETERMINED VOLTAGE; A LOAD IMPEDANCE; HIGH SPEED, LOW POWER, LOW IMPEDANCE SWITCHING MEANS IN CIRCUIT WITH SAID FIRST CAPACITOR AND SAID LOAD IMPEDANCE AND PROVIDING A FIRST RELATIVELY FAST DISCHARGE PATH FOR SAID FIRST CAPACITOR FOR PRODUCING THE LEADING EDGE OF A RECTANGULAR VOLTAGE PULSE ACROSS SAID LOAD IMPEDANCE; A SECOND CAPACITOR; MEANS FOR CHARGING SAID SECOND CAPACITOR TO A PREDETERMINED VOLTAGE; LOW SPEED, HIGH POWER, LOW IMPEDANCE SWITCHING MEANS IN CIRCUIT WITH SAID SECOND CAPACITOR AND SAID LOAD IMPEDANCE AND EXCLUDING SAID LOW POWER SWITCHING MEANS AND PROVIDING A SECOND RELATIVELY SLOW DISCHARGE PATH FOR SAID SECOND CAPACITOR FOR LENGTHENING THE DURATION OF SAID VOLTAGE PULSE; AND MEANS SHUNTING SAID LOAD IMPEDANCE FOR TERMINATING SAID VOLTAGE PULSE AT A PERDETERMINED TIME.
Claim 2
Dependent Claim
139 words
A RECTANGULAR PLUSE GENERATING CIRCUIT, COMPRISING: A FIRST CAPACITOR; MEANS FOR CHARGING SAID FIRST CAPACITOR TO A PERDETERMINED VOLTAGE; A LOAD IMPEDANCE; HIGH SPEED, LOW POWER, LOW IMPEDANCE SWITCHING MEANS IN CIRCUIT WITH SAID FIRST CAPACITOR AND SAID LOAD IMPEDANCE AND PROVIDING A FIRST RELATIVELY FAST DISCHARGE PATH FOR SAID FIRST CAPACITOR FOR PRODUCING THE LEADING EDGE OF A RECTANGULAR VOLTAGE PULSE ACROSS SAID LOAD IMPEDANCE; A SECOND CAPACITOR; MEANS FOR CHARGING SAID SECOND CAPACITOR TO A PREDETERMINED VOLTAGE; LOW SPEED, HIGH POWER, LOW IMPEDANCE SWITCHING MEANS IN CIRCUIT WITH SAID SECOND CAPACITOR AND SAID LOAD IMPEDANCE AND EXCLUDING SAID LOW POWER SWITCHING MEANS AND PROVIDING A SECOND RELATIVELY SLOW DISCHARGE PATH FOR SAID SECOND CAPACITOR FOR LENGTHENING THE DURATION OF SAID VOLTAGE PULSE; AND MEANS SHUNTING SAID LOAD IMPEDANCE FOR TERMINATING SAID VOLTAGE PULSE AT A PERDETERMINED TIME.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |