US3290171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and materials for metallizing ceramics
Assignee: RCA Corp
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Filing: 1962-12-05
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Granted: 1966-12-06
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Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 James A Zollman
- 👤 Berg Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:53
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5138; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A METHOD OF MEALLIZING CERAMICS COMPRISING OVER 90 WEIGHT PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINUM OXIDE, BERYLLIUM OXIDE, AND ZIRCONIUM OXIDE, COMPRISING THE STEPS OF: (A) MIXING POWERED MOLYBDENUM AND POWDERED STEATITE IN THE PROPORTION 70-95 WEIGHT PERCENT POWDERED MOLYBDENUM AND 30-5 WEIGHT PERCENT POWDERED STEATITE; (B) ADDING AN ORGANIC BINDER AND AN ORGANIC VEHICLE IN AMOUNT SUFFICIENT TO FORM A FLUID MIXTURE; (C) APPLYING THE FLUID MIXTURE TO THE PORTION OF THE CERAMIC WHICH IS TO BE METALLIZED; AND, (D) FIRING THE CERAMIC IN A REDUCING ATMOSPHERE FOR ABOUT ONE HOUR AT A TEMPERATURE OF ABOUT 1450*C. TO 1700*C.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |