US3012176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitors
Assignee: A H HUNT (CAPACITORS) Ltd
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Filing: 1956-03-26
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Granted: 1961-12-05
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Expires: 1976-03-26
Abstract
No abstract record available.
Inventors
- 👤 Williams Kenneth George Daniel
- 👤 Smith Ronald Christopher
- 👤 Graham Peter Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:26
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ELECTRICAL CAPACITOR COMPRISING STRIPS OF DIELECTRIC MATERIAL WITH AT LEAST THREE ELECTRODES IN THE FORM OF ADHERENT LAYERS OF METALLIZATION BORNE ON CERTAIN OF THE FACES OF THE DIELECTRIC STRIPS, AND WHEREIN AT LEAST TWO LAYERS OF DIELECTIRC ARE DISPOSED BETWEEN THE ELECTRODES IN EVERY PAIR OF OPPOSITE POLARITY ONE LAYER BEING A STRIP OF PAPER DIELECTRIC AND THE OTHER A STRIP OF SYNTHETIC PLASTIC FILM DIELECTRIC, AND ONLY THE PAPER STRIPS BEAR THE LAYERS OF ELECTRODE METALLIZATION, THE PLASTIC FILM DIELECTRIC BEING ENTIRELY UNMETALLIZED, THE DIELECTRIC MATERIAL BETWEEN EACH OF THE ADJACENT ELECTRODES BEING UNIFORM AS TO MATERIAL AND THICKNESS.
Claim 2
Dependent Claim
102 words
AN ELECTRICAL CAPACITOR COMPRISING STRIPS OF DIELECTRIC MATERIAL WITH AT LEAST THREE ELECTRODES IN THE FORM OF ADHERENT LAYERS OF METALLIZATION BORNE ON CERTAIN OF THE FACES OF THE DIELECTRIC STRIPS, AND WHEREIN AT LEAST TWO LAYERS OF DIELECTIRC ARE DISPOSED BETWEEN THE ELECTRODES IN EVERY PAIR OF OPPOSITE POLARITY ONE LAYER BEING A STRIP OF PAPER DIELECTRIC AND THE OTHER A STRIP OF SYNTHETIC PLASTIC FILM DIELECTRIC, AND ONLY THE PAPER STRIPS BEAR THE LAYERS OF ELECTRODE METALLIZATION, THE PLASTIC FILM DIELECTRIC BEING ENTIRELY UNMETALLIZED, THE DIELECTRIC MATERIAL BETWEEN EACH OF THE ADJACENT ELECTRODES BEING UNIFORM AS TO MATERIAL AND THICKNESS.
References Cited (Backward Citations)
GB437429A
Cited
FR903165A
Cited
FR994203A
Cited
GB686293A
Cited
US2740732A
Cited
US2864982A
Cited
GB723693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |