US3307134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated impedance element
Assignee: Corning Glass Works
•
Filing: 1963-04-02
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Granted: 1967-02-28
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Expires: 1983-04-02
Abstract
No abstract record available.
Inventors
- 👤 Edward M Griest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:48
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/228; C; C03; C03C; C03C29/00; H01B; H01B1/00; H01B1/14; H01B1/16; H01C; H01C1/00; H01C1/02; H01C1/024; H01C1/026; H01C1/14; H01C1/144; H01C17/00; H01C17/02; H01C7/00; H01G2/00; H01G2/10; H01G2/103; H01G4/224; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN ENCAPSULATED IMPEDANCE DEVICE COMPRISING AN IMPEDANCE ELEMENT, A PAIR OF TERMINAL LEADS EACH HAVING A CONDUCTIVE FRIT AT ONE END, SAID CONDUCTIVE FRIT COMPRISING A MIXTURE OF ABOUT 68 PARTS BY WEIGHT OF FINELY DIVIDED SILVER AND FROM ABOUT 10 TO ABOUT 20 PARTS BY WEIGHT OF FRITTED GLASS, SAID LEADS BEING DISPOSED WITH THE FRIT COATED ENDS ADJACENT THE ENDS OF SAID ELEMENT, A SLEEVE OF ENCASPULATING MATERIAL DISPOSED ABOUT SAID ELEMENT AND A PORTION OF SAID LEADS IN A SPACED RELATIONSHIP THEREWITH, AND A FUSIBLE END PORTION DISPOSED ABOUT EACH SAID LEAD INTERMEDIATE THE ENDS THEREOF HAVING A COEFFICIENT OF THERMAL EXPANSION COMPATIBLE WITH THAT OF THE ENCAPSULATING MATERIAL, SAID LEADS BEING FUSED TO THE ENDS OF SAID DEVICE, SAID FUSIBLE END PORTIONS BEING FUSED TO SAID LEADS AND SAID SLEEVE.
Claim 2
Dependent Claim
134 words
AN ENCAPSULATED IMPEDANCE DEVICE COMPRISING AN IMPEDANCE ELEMENT, A PAIR OF TERMINAL LEADS EACH HAVING A CONDUCTIVE FRIT AT ONE END, SAID CONDUCTIVE FRIT COMPRISING A MIXTURE OF ABOUT 68 PARTS BY WEIGHT OF FINELY DIVIDED SILVER AND FROM ABOUT 10 TO ABOUT 20 PARTS BY WEIGHT OF FRITTED GLASS, SAID LEADS BEING DISPOSED WITH THE FRIT COATED ENDS ADJACENT THE ENDS OF SAID ELEMENT, A SLEEVE OF ENCASPULATING MATERIAL DISPOSED ABOUT SAID ELEMENT AND A PORTION OF SAID LEADS IN A SPACED RELATIONSHIP THEREWITH, AND A FUSIBLE END PORTION DISPOSED ABOUT EACH SAID LEAD INTERMEDIATE THE ENDS THEREOF HAVING A COEFFICIENT OF THERMAL EXPANSION COMPATIBLE WITH THAT OF THE ENCAPSULATING MATERIAL, SAID LEADS BEING FUSED TO THE ENDS OF SAID DEVICE, SAID FUSIBLE END PORTIONS BEING FUSED TO SAID LEADS AND SAID SLEEVE.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |