Patent US3171052A successfully refreshed from Google Patents.
US3171052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic-to-metal bond for spark plugs and the like
Assignee: Motors Liquidation Co
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Filing: 1961-10-10
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Granted: 1965-02-23
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Schwartzwalder Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:40
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A METAL-TO-CERAMIC CONNECTION COMPRISING A CERAMIC BODY HAVING IN CONTACT WITH THE SURFACE THEREOF AN ALLOY CONSISTING ESSENTIALLY OF SILVER AND A SMALL BUT EFFECTIVE AMOUNT OF TELLURIUM TO PROVIDE IMPROVED MORE INTIMATE CONTACT WITH SAID CERAMIC.
Claim 2
Dependent Claim
37 words
A METAL-TO-CERAMIC CONNECTION COMPRISING A CERAMIC BODY HAVING IN CONTACT WITH THE SURFACE THEREOF AN ALLOY CONSISTING ESSENTIALLY OF SILVER AND A SMALL BUT EFFECTIVE AMOUNT OF TELLURIUM TO PROVIDE IMPROVED MORE INTIMATE CONTACT WITH SAID CERAMIC.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |