US3667936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental alloy
Assignee: Aurium Research Corp
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Filing: 1969-03-21
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Granted: 1972-06-06
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Expires: 1989-03-21
Abstract
Abstract A PRECIOUS ALLOY FOR USE IN DENTAL FREAMES ON WHICH CERAMIC COVERINGS ARE FORMED BY BAKING. PALLADIUM IS USED IN AN AMOUNT RANGING BETWEEN 8 AND 50 WEIGHT PERCENT AND INDIUM IS USED IN AN AMOUNT RANGING BETWEEN 3 AND 12 WEIGHT PERCENT. THE REMAINDER OF THE ALLOY CONSISTS PRIMARILY OF GOLD, OR GOLD AND SILVER, AND SMALL AMOUNTS OF TRACE METALS. WITH SUCH AN ALLOY, THERE IS NO NEED FOR THE USE OF PLATINUM AS IN THE PRIOR ART DENTAL ALLOYS HAVING THE SAME DESIRABLE CHARACTERISTICS.
Inventors
- 👤 Michel Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:57
CPC Classifications
C; C22; C22C; C22C5/00; A; A61; A61K; A61K6/00; A61K6/80; A61K6/84; A61K6/844
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |