Patent US3275899A successfully refreshed from Google Patents.
US3275899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay control circuit
Assignee: Teradyne Inc
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Filing: 1963-09-09
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Granted: 1966-09-27
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Wolf Nicholas De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:12
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CIRCUIT FOR PROVIDING A PULSE OF ELECTRICAL ENERGY WHICH IS SUBSTANTIALLY COINCIDENT WITH THE FIRST MOVEMENT OF THE ARMATURE OF A RELAY COMPRISING, IN COMBINATION A RELAY, SAID RELAY HAVING AN INDUCTIVE COIL AND AN ARMATURE, MEANS FOR APPLYING A CONTROL SIGNAL TO SAID RELAY COIL TO CAUSE SAID RELAY TO CHANGE STATE, MEANS RESPONSIVE TO THE INDUCED VOLTAGE PULSE APPEARING ACROSS SAID RELAY
Claim 2
Dependent Claim
65 words
A CIRCUIT FOR PROVIDING A PULSE OF ELECTRICAL ENERGY WHICH IS SUBSTANTIALLY COINCIDENT WITH THE FIRST MOVEMENT OF THE ARMATURE OF A RELAY COMPRISING, IN COMBINATION A RELAY, SAID RELAY HAVING AN INDUCTIVE COIL AND AN ARMATURE, MEANS FOR APPLYING A CONTROL SIGNAL TO SAID RELAY COIL TO CAUSE SAID RELAY TO CHANGE STATE, MEANS RESPONSIVE TO THE INDUCED VOLTAGE PULSE APPEARING ACROSS SAID RELAY
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |