Patent US3574610A successfully refreshed from Google Patents.
US3574610A
Expired / Lapsed
US
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Dental gold alloy
Assignee: CMP INDUSTRIES Inc A CORP OF NY
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Filing: 1968-11-01
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Granted: 1971-04-13
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Expires: 1988-11-01
Abstract
Abstract THE INVENTION PROVIDES A LOW MELTING POINT PRECIOUS METAL OR DENTAL GOLD ALLOY CONSISTING OF GOLD, NICKEL AND GALLIUM OR GOLD, NICKEL, GALLIUM AND PALLADIUM. THE YELLOW GOLD ALLOY WHICH CONSISTS ONLY OF GOLD, GALLIUM AND NICKEL HAS A MELTING POINT OF ABOUT 1400*F. AND CAN BE CAST DIRECTLY TO PREFABRICATED PORCELAIN TEETH. ALSO, IT HAS A HIGH BRINELL HARDNESS AND HIGH TENSILE STRENGTH. THE WHITE OR PLATINUM COLORED DENTAL GOLD ALLOY, WHICH CONSISTS OF GOLD, GALLIUM, NICKEL AND PALLADIUM, HAS A MELTING POINT OF APPROXIMATELY 1500*F., HIGH BRINELL HARDNESS, AND HIGH TENSILE STRENGTH. BOTH ALLOYS ARE TARNISH RESISTANT.
Inventors
- 👤 Emil M Prosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:31
CPC Classifications
C; C22; C22C; C22C5/00; C22C5/02; 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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |