US3087093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor protection
Assignee: Duracell Inc USA
•
Filing: 1959-05-13
•
Granted: 1963-04-23
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Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 Richard D Bourgerie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:46
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/14; H01T; H01T4/00; H01T4/08; H02; H02H; H02H7/00; H02H7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CAPACITOR COMPRISING: A GENERALLY ROUND DISC OF CERAMIC DIELECTRIC MATERIAL HAVING SPACED, ALIGNED AND GENERALLY PARALLEL FACES; GENERALLY CIRCULAR CONDUCTIVE CAPACITOR AND TERMINAL AREAS CENTRALLY LOCATED ON EACH OF SAID SPACED FACES SAID AREAS BEING SMALLER THAN SAID FACES; GENERALLY RECTANGULAR ALIGNED CONDUCTIVE AREAS, ONE ON EACH FACE EXTENDING FROM SAID CAPACITOR AND TERMINAL AREAS TO EDGES OF SAID FACES PROVIDING A SPARK GAP; A RESISTIVE COATING ON SAID DISC CONNECTED WITH SAID TERMINAL AREAS AND SPACED FROM SAID SPARK GAP SURFACES; AND A COATING OF INSULATING MATERIAL ON SAID BODY, COVERING SAID TERMINAL AREAS AND SAID RESISTIVE COATING, SAID SPACED CONDUCTIVE SPARK GAP SURFACES BEING FREE OF SAID INSULATING COATING.
Claim 2
Dependent Claim
112 words
A CAPACITOR COMPRISING: A GENERALLY ROUND DISC OF CERAMIC DIELECTRIC MATERIAL HAVING SPACED, ALIGNED AND GENERALLY PARALLEL FACES; GENERALLY CIRCULAR CONDUCTIVE CAPACITOR AND TERMINAL AREAS CENTRALLY LOCATED ON EACH OF SAID SPACED FACES SAID AREAS BEING SMALLER THAN SAID FACES; GENERALLY RECTANGULAR ALIGNED CONDUCTIVE AREAS, ONE ON EACH FACE EXTENDING FROM SAID CAPACITOR AND TERMINAL AREAS TO EDGES OF SAID FACES PROVIDING A SPARK GAP; A RESISTIVE COATING ON SAID DISC CONNECTED WITH SAID TERMINAL AREAS AND SPACED FROM SAID SPARK GAP SURFACES; AND A COATING OF INSULATING MATERIAL ON SAID BODY, COVERING SAID TERMINAL AREAS AND SAID RESISTIVE COATING, SAID SPACED CONDUCTIVE SPARK GAP SURFACES BEING FREE OF SAID INSULATING COATING.
References Cited (Backward Citations)
GB284624A
Cited
US1841628A
Cited
GB616683A
Cited
US2566666A
Cited
US2619519A
Cited
US2717356A
Cited
US2940035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |