Patent US5477079A successfully refreshed from Google Patents.
Patent US3103734A successfully refreshed from Google Patents.
US3103734A
Expired / Lapsed
US
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Fully silvered ceramic
Assignee: Sprague Electric Co
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Filing: 1958-08-08
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Granted: 1963-09-17
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Expires: 1978-08-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Hurley
- 👤 Frank L Donohue
- 👤 James R Teeple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:00
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
METHOD OF MAKING CERAMIC DISC CAPACITORS WHICH COMPRISES COMPLETELY COVERING THE FLAT SURFACES OF A PLURALITY OF CERAMIC DISCS WITH A CONDUCTIVE MATERIAL, SOLIDIFYING SAID CONDUCTIVE MATERIAL, ARRANGING SAID COVERED DISCS UPRIGHT AND ROTATABLY FREE IN A NEST HAVING LATERAL END WALLS CONNECTED BY LONGITUNDINAL SIDE WALLS, SUPPORTING THE FREELY ROTATABLY DISCS IN SaID UPRIGHT ARRANGEMENT BY MEANS OF SAID LATERAL AND LONGITUDINAL DISPLACEMENT, HAVE A MINIMUM OF LATERAL AND LONGITUDINAL DISPLACEMENT, POSITIONING SAID NEST ADJACENT A FLAT MOVABLE ABRASIVE SURFACE WITH EDGES OF SAID DISCS IN CONTACT WITH SAID SURFACE, AND MOVING SAID SURFACE RELATIVE TO SAID NEST TO SIMULTANEOUSLY ROTATE AND ABRADE SAID DISC EDGES.
Claim 2
Dependent Claim
107 words
METHOD OF MAKING CERAMIC DISC CAPACITORS WHICH COMPRISES COMPLETELY COVERING THE FLAT SURFACES OF A PLURALITY OF CERAMIC DISCS WITH A CONDUCTIVE MATERIAL, SOLIDIFYING SAID CONDUCTIVE MATERIAL, ARRANGING SAID COVERED DISCS UPRIGHT AND ROTATABLY FREE IN A NEST HAVING LATERAL END WALLS CONNECTED BY LONGITUNDINAL SIDE WALLS, SUPPORTING THE FREELY ROTATABLY DISCS IN SaID UPRIGHT ARRANGEMENT BY MEANS OF SAID LATERAL AND LONGITUDINAL DISPLACEMENT, HAVE A MINIMUM OF LATERAL AND LONGITUDINAL DISPLACEMENT, POSITIONING SAID NEST ADJACENT A FLAT MOVABLE ABRASIVE SURFACE WITH EDGES OF SAID DISCS IN CONTACT WITH SAID SURFACE, AND MOVING SAID SURFACE RELATIVE TO SAID NEST TO SIMULTANEOUSLY ROTATE AND ABRADE SAID DISC EDGES.
References Cited (Backward Citations)
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Cited
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Cited
US2387141A
Cited
US2606955A
Cited
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US2768421A
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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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |