US3112429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature multiple surge arrestor
Assignee: Dale Electronics Inc
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Filing: 1961-09-14
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Granted: 1963-11-26
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Expires: 1981-09-14
Abstract
No abstract record available.
Inventors
- 👤 Herman R Person
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:07
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/02; H01T1/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
IN A MULTIPLE SURGE ARRESTOR, AN EQUIPMENT TERMINAL HAVING A SPIRAL ELECTRODE DECREASING IN DIAMETER AS IT EXTENDS IN ONE DIRECTION, A SECOND EQUIPMENT TERMINAL HAVING A SPIRAL ELECTRODE DECREASING IN DIAMETER AS IT EXTENDS IN ONE DIRECTION; SAID FIRST AND SECOND MENTIONED SPIRAL ELECTRODES EXTENDING LONGITUDINALLY TOWARD EACH OTHER AND DECREASING IN DIAMETER AS THEY EXTEND TOWARD EACH OTHER, AN ELECTRO-INSULATING MEMBER CONNECTING SAID FIRST EQUIPMENT TERMINAL WITH SAID SECOND MENTIONED EQUIPMENT TERMINAL, A CYLINDRICAL ELECTRODE SPACED APART FROM AND EMBRACING BOTH OF SAID SPIRAL ELECTRODES, AN ELECTRODE SPACED APART FROM THE OUTER SIDE OF SAID CYLINDRICAL ELECTRODE, AND A WIRE COIL AROUND SAID CYLINDRICAL ELECTRODE HAVING ONE END ELECTRICALLY CONNECTED TO SAID CYLINDRICAL ELECTRODE AND ITS OTHER END OPERATIVELY ELECTRICALLY CONNECTED TO SAID THIRD MENTIONED ELECTRODE, SAID THIRD MENTIONED ELECTRODE ADAPTED TO BE OPERATIVELY ELECTRICALLY CONNECTED TO A GROUND.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |