US3096496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overvoltage protective device
Assignee: McGraw Edison Co
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Filing: 1961-05-11
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Granted: 1963-07-02
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Expires: 1981-05-11
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Burrage
- 👤 Darrel D Mcstrack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:32
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/16; H01C; H01C7/00; H01C7/10; H01C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A VALVE ELEMENT FOR A LIGHTNING ARRESTER OF THE TYPE HAVING AT LEAST A PAIR OF SPACED APART ELECTRODES WHICH CONJOINTLY DEFINE A SPARK GAP THEREBETWEEN, SAID ELEMENT BEING IN SERIES ELECTRICAL RELATION WITH AT LEAST ONE OF SAID PAIR OF ELECTRODES AND COMPRISING FIRST AND SECOND DISCRETE PORTIONS WHICH ARE IN PARALLEL ELECTRICAL RELATION WITH ONE ANOTHER, SAID FIRST PORTION COMPOSED IN PART OF LARGE GRAIN NON-LINEAR RESISTANCE VALVE MATERIAL, SAID SECOND PORTION COMPOSED IN PART OF RELATIVELY SMALLER GRAIN NON-LINEAR RESISTANCE VALVE MATERIAL, SAID VALVE ELEMENT HAVING A PAIR OF OPPOSED CONTACT FACES AND EACH OF SAID FIRST AND SECOND PORTIONS EXTENDING ACROSS SAID ELEMENT BETWEEN SAID CONTACT FACES AND DEFINING A PORTION OF EACH OF SAID CONTACT FACES.
Claim 2
Dependent Claim
121 words
A VALVE ELEMENT FOR A LIGHTNING ARRESTER OF THE TYPE HAVING AT LEAST A PAIR OF SPACED APART ELECTRODES WHICH CONJOINTLY DEFINE A SPARK GAP THEREBETWEEN, SAID ELEMENT BEING IN SERIES ELECTRICAL RELATION WITH AT LEAST ONE OF SAID PAIR OF ELECTRODES AND COMPRISING FIRST AND SECOND DISCRETE PORTIONS WHICH ARE IN PARALLEL ELECTRICAL RELATION WITH ONE ANOTHER, SAID FIRST PORTION COMPOSED IN PART OF LARGE GRAIN NON-LINEAR RESISTANCE VALVE MATERIAL, SAID SECOND PORTION COMPOSED IN PART OF RELATIVELY SMALLER GRAIN NON-LINEAR RESISTANCE VALVE MATERIAL, SAID VALVE ELEMENT HAVING A PAIR OF OPPOSED CONTACT FACES AND EACH OF SAID FIRST AND SECOND PORTIONS EXTENDING ACROSS SAID ELEMENT BETWEEN SAID CONTACT FACES AND DEFINING A PORTION OF EACH OF SAID CONTACT FACES.
References Cited (Backward Citations)
US2276732A
Cited
US2329085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |