US2835967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a solderable metallic coating on a ceramic body and of solderingto the coating
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1953-10-08
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Granted: 1958-05-27
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Expires: 1973-10-08
Abstract
No abstract record available.
Inventors
- 👤 Umblia Elmar Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:07
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5105; C04B41/5133; C04B41/80; C04B41/81; C04B41/85; C04B41/88
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
THE METHOD WHICH COMPRISES APPLYING TO THE SURFACE OF THE CERAMIC MEMBER A LAYER OF A POWDERED MIXTURE CONSISTING ESSENTIALLY OF 60-95 PERCENT OF A REFRACTORY METAL SELECTED FROM THE CLASS CONSISTING OF MOLYBDENUM, TUNGSTEN AND RHENIUM, 5-40 PERCENT OF AN EASILY DEOXIZABLE METAL SELECTED FROM THE CLASS CONSISTING OF NICKEL AND COBALT AND 0.05-0.5 PERCENT OF AN OXIDE OF A METAL OF THE AFORESAID CLASSES, HEATING SAID MEMBER AND LAYER TO A TEMPERATURE OF 1200-1350*C. FOR 30-60 MINUTES IN AN INERT ATMOSPHERE TO SINTER SAID POWDERS, AND THEN COOLING AFTER SINTERING IN A REDUCING ATMOSPHERE.
Claim 2
Independent Claim
96 words
THE METHOD WHICH COMPRISES APPLYING TO THE SURFACE OF THE CERAMIC MEMBER A LAYER OF A POWDERED MIXTURE CONSISTING ESSENTIALLY OF 60-95 PERCENT OF A REFRACTORY METAL SELECTED FROM THE CLASS CONSISTING OF MOLYBDENUM, TUNGSTEN AND RHENIUM, 5-40 PERCENT OF AN EASILY DEOXIZABLE METAL SELECTED FROM THE CLASS CONSISTING OF NICKEL AND COBALT AND 0.05-0.5 PERCENT OF AN OXIDE OF A METAL OF THE AFORESAID CLASSES, HEATING SAID MEMBER AND LAYER TO A TEMPERATURE OF 1200-1350*C. FOR 30-60 MINUTES IN AN INERT ATMOSPHERE TO SINTER SAID POWDERS, AND THEN COOLING AFTER SINTERING IN A REDUCING ATMOSPHERE.
Claim 3
Dependent Claim
33 words
METHOD OF BONDING A SOLDERABLE ELEMENT OF A CERAMIC BODY WHICH COMPRISES METALIZING THE SURFACE OF THE CERAMIC BODY BY THE METHOD OF CLAIM 1, AND SOLDERING SAID ELEMENT AND SAID METALLIZED SURFACE.
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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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |