US3080261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of lead based alloys to silicate based ceramic members
Assignee: 3M Co
•
Filing: 1959-07-13
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Granted: 1963-03-05
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert W Fritts
- 👤 James D Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:01
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12701
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
THE METHOD OF BONDING AN ALLOY OF LEAD AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TELLURIUM, SELENIUM AND SULFUR TO A SILICATE BASED ELECTRICALLY INSULATING CERAMIC MEMBER HAVING A SURFACE PORTION FORMED WITH A RECESS HAVING A WIDTH NOT GREATER THAN 1/32 INCH, COMPRISING IMMERISING SAID RECESSED SURFACE PORTION IN A MELT OF SAID ALLOY AND WITHDRAWING SAID SURFACE PORTION FROM THE MELT UNDER AT LEAST SLIGHTLY OXIDIZING CONDITIONS TO CAUSE MOLTEN ALLOY TO ADHERE TO SAID CERAMIC MEMBER WITHIN SAID RECESS, AND THEN ALLOWING SAID ADHERENT ALLOY TO SOLIDIFY.
References Cited (Backward Citations)
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |