US3223874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preionizer for use in overvoltage protective devices
Assignee: General Electric Co
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Filing: 1963-12-13
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Granted: 1965-12-14
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Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:44
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
IN AN OVERVOLTAGE PROTECTIVE DEVICE WHICH HAS A PAIR OF SPACED ELECTRODES DEFINING A DISCHARGE GAP, A PREIONIZER FOR IONIZING SAID GAP, SAID PREIONIZER COMPRISING INTEGRAL BODY MEMBER FORMED OF AN INSULATING MATERIAL, A PAIR OF PREIONIZER ELECTRODES SECURED TO SAID BODY MEMBER, ONE OF SAID PREIONIZER ELECTRODES FORMED FROM CONDUCTING MATERIAL COATED ON A PORTION OF SAID BODY MEMBER, THE OTHER OF SAID PREIONIZER ELECTRODES BEING FORMED FROM A METALLIC MEMBER WHICH IS SECURED IN A CAVITY IN AN OPPOSITE PORTION OF SAID BODY MEMBER, AN IONIZING GAP FORMED BETWEEN SAID PREIONIZER ELECTRODES, SAID GAP BEING DEFINED BY THAT PORTION OF THE BODY MEMBER SEPARATING SAID PREIONIZER ELECTRODES, AND MEANS ELECTRICALLY CONNECTING SAID PREIONIZER IN PARALLELCIRCUIT WITH SAID SPACED ELECTRODES.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |