Silver-tin-copper-palladium alloy and amalgam thereof

Patent 4374085 Issued on February 15, 1983. Estimated Expiration Date:

May 29, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3676112

3871876

Dental alloy and amalgam Patent #: 3975192
Issued on: 08/17/1976
Inventor: Simpson

Inventors

Assignee

Special Metals Corporation

Application

No. 06/154200 filed on 05/29/1980

US Classes:

420/470, Tin containing420/471, Aluminum containing420/473, Iron, manganese or nickel containing420/476, Zinc containing420/503, Other noble metal containing420/527, Silver containing420/587Copper containing

Examiners

Primary: Dean, R.

Attorney, Agent or Firm

International Classes

C22C 30/04 (20060101)
C22C 30/00 (20060101)
C22C 5/06 (20060101)
A61K 6/05 (20060101)
A61K 6/02 (20060101)

Abstract

A silver-tin-copper-palladium alloy containing from 30 to 70% silver, 15 to 37% tin, at least 13% copper and from 0.05 to 0.95% palladium; and an amalgam thereof.

Other References

Nakamura et al., Cellular Responses to the Dispersion Amalgams in Vitro, Journal of Dental Research, vol. 58, No. 8, Aug. 1979, pp. 1780-1790
Eames et al., Eight High-Copper Amalgam Alloys and Six Conventional Alloys Compared, Operative Density, vol. 1, No. 3, Summer, 1976