Patent US2379318A successfully refreshed from Google Patents.
US3271192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitors and process for making same
Assignee: International Business Machines Corp
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Filing: 1962-06-05
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Granted: 1966-09-06
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Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Rudolf E Thun
- 👤 Fred S Maddocks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:47
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/08; C23C14/0694
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS OF PRODUCING A CAPACITOR HAVING A HIGH DIELECTRIC CONSTANT, WHICH COMPRISES: EVAPORATING IN A LOW PRESSURE VACUUM CHAMBER AN EVAPORANT HEATED TO A TEMPERATURE OF BETWEEN 1350* C. AND 1750*C., SAID EVAPORANT CONSISTING ESSENTIALLY OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE RARE EARTH FLUORIDES AND OXIDES AND MIXTURES THEREOF, IN CONTACT WITH A METAL HAVING A HIGH MELTING POINT, AND CONDENSING SAID EVAPORANT ON A CONDUCTIVE SUBSTRATE T FORM A DIELECTRIC FILM OVER THE CONDUCTIVE SUBSTRATE; AND EVAPORATING A CONDUCTIVE MATERIAL AND CONDENSING THE CONDUCTIVE EVAPORANT ON SAID DIELECTRIC FILM TO FROM THE CONDUCTIVE MEMBER OF A CAPACITOR.
Claim 2
Dependent Claim
102 words
A PROCESS OF PRODUCING A CAPACITOR HAVING A HIGH DIELECTRIC CONSTANT, WHICH COMPRISES: EVAPORATING IN A LOW PRESSURE VACUUM CHAMBER AN EVAPORANT HEATED TO A TEMPERATURE OF BETWEEN 1350* C. AND 1750*C., SAID EVAPORANT CONSISTING ESSENTIALLY OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE RARE EARTH FLUORIDES AND OXIDES AND MIXTURES THEREOF, IN CONTACT WITH A METAL HAVING A HIGH MELTING POINT, AND CONDENSING SAID EVAPORANT ON A CONDUCTIVE SUBSTRATE T FORM A DIELECTRIC FILM OVER THE CONDUCTIVE SUBSTRATE; AND EVAPORATING A CONDUCTIVE MATERIAL AND CONDENSING THE CONDUCTIVE EVAPORANT ON SAID DIELECTRIC FILM TO FROM THE CONDUCTIVE MEMBER OF A CAPACITOR.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |