US3198997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor having a printed plural resistor pattern between terminals
Assignee: Sprague Electric Co
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Filing: 1959-12-17
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Granted: 1965-08-03
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 John H Fabricius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:39
CPC Classifications
H; H01; H01C; H01C7/00; H01C1/00; H01C1/01; H01G; H01G4/00; H01G4/40; H01G9/00; H01G9/004; H01G9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN ELECTRICAL CAPACITOR COVER FOR CLOSING A CAPACITOR CASING, SAID COVER HAVING TWO LAYERS, THE FIRST OF SAID LAYERS BEING OF RELATIVELY RIGID ORGANIC PLASTIC DIELECTRIC MATERIAL, THE OTHER OF SAID LAYERS BEING OF RESILIENT DIELECTRIC MATERIAL UNDERLYING SAID FIRST LAYER, A PAIR OF SPACED OPENINGS EXTENDING THROUGH SAID COVER FOR RECEIVING CAPACITOR TERMINALS, AN ADDITIONAL APERTURE THROUGH SAID FIRST LAYER DISPOSED LATERALLY OF SAID PAIR OF OPENINGS FOR ALLOWING EXPANSION OF SAID SECOND LAYER THERETHROUGH, A RESISTIVE COATING HAVING MULTIPLE SPACED PATHS OF UNEQUAL LENGTH ON THE SURFACE OF SAID FIRST LAYER CONNECTING SAID OPENINGS AND DISPOSED LATERALLY OF SAID OPENINGS OPPOSITE SAID APERTURE, THE RESISTANCE OF EACH RESPECTIVE PATH BEING LESS THAN THE RESISTANCE OF THE NEXT ADJACENT SHORTER PATH.
Claim 2
Dependent Claim
122 words
AN ELECTRICAL CAPACITOR COVER FOR CLOSING A CAPACITOR CASING, SAID COVER HAVING TWO LAYERS, THE FIRST OF SAID LAYERS BEING OF RELATIVELY RIGID ORGANIC PLASTIC DIELECTRIC MATERIAL, THE OTHER OF SAID LAYERS BEING OF RESILIENT DIELECTRIC MATERIAL UNDERLYING SAID FIRST LAYER, A PAIR OF SPACED OPENINGS EXTENDING THROUGH SAID COVER FOR RECEIVING CAPACITOR TERMINALS, AN ADDITIONAL APERTURE THROUGH SAID FIRST LAYER DISPOSED LATERALLY OF SAID PAIR OF OPENINGS FOR ALLOWING EXPANSION OF SAID SECOND LAYER THERETHROUGH, A RESISTIVE COATING HAVING MULTIPLE SPACED PATHS OF UNEQUAL LENGTH ON THE SURFACE OF SAID FIRST LAYER CONNECTING SAID OPENINGS AND DISPOSED LATERALLY OF SAID OPENINGS OPPOSITE SAID APERTURE, THE RESISTANCE OF EACH RESPECTIVE PATH BEING LESS THAN THE RESISTANCE OF THE NEXT ADJACENT SHORTER PATH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |