U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

Newsletter  PatentStorm News

Make the Most of PatentStorm

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest patents by subscribing to an RSS feed.

Got questions? Ask a Patent Expert!

Registered users: Manage your profile, comments and alerts.

 

US Patent 5256370 - Lead-free alloy containing tin, silver and indium

US Patent Issued on October 26, 1993
Estimated Patent Expiration Date: Icon_subject May 4, 2012Estimated 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.
loading...


View Patent Images (PDF)
(Registered users only)

Abstract

A low melting point solder alloy comprising effective amounts of tin, silver and indium.

Other References

  • Rhines et al., Constitution of the System Indium-Tin, pp. 1-20, Paper Presented at the 28th Annual Convention of the American Society for Metals (1946)
  • Ludwick, Indium, pp. 21-151, The Indium Corporation of America (1959)
  • Manko, Solders and Soldering, pp. 115-123, McGraw Hill Book Company (2nd ed. 1979)
  • Assembly Joining Handbook, Low Melting Temperature Solders, The Institute for Interconnecting and Packaging Electronic Circuits (Dec. 1983)
  • The Indium Corporation of America, Indalloy Specialty Solders & Alloys (1988)
  • The Indium Corporation of America, Indalloy Fusible Alloys (1988)
  • Federal Specification, Solder; Tin Alloy, Tin-Lead Alloy, and Lead Alloy, QQ-S-571E (Interim Amendment 5 (ER) 28 Dec. 1989)
  • Stevens & White, Properties and Selection: Indium and Bismuth, Metals Handbook, vol. 2 (10th ed. 1990)
  • Soldering of Electronic Products, Lead Industries Association Inc. (1991

Inventors

Assignee

Application

No. 878050 filed on 05/04/1992

US Classes:

420/557, TIN BASE219/146.22Nonferrous

Field of Search

420/557, TIN BASE219/146.22Nonferrous

Examiners

Primary: Yee, Deborah

US Patent References

1565115, 1934730, 2157933, 2306667, 2464821, 2532265, 2623273, 3184303, 3503721, 3627517, 3833362, 4268585, Soldering to a gold member
Issued on: 05/19/1981
Inventor: Daur ,   et al.4670217, Solder composition
Issued on: 06/02/1987
Inventor: Henson ,   et al.4695428, Solder composition
Issued on: 09/22/1987
Inventor: Ballentine ,   et al.4778733, Low toxicity corrosion resistant solder
Issued on: 10/18/1988
Inventor: Lubrano ,   et al.4797328, Soft-solder alloy for bonding ceramic articles
Issued on: 01/10/1989
Inventor: Boehm ,   et al.4806309, Tin base lead-free solder composition containing bismuth, silver and antimony
Issued on: 02/21/1989
Inventor: Tulman4879096, Lead- and antimony-free solder composition
Issued on: 11/07/1989
Inventor: Naton5052489Apparatus for selectively actuating well tools
Issued on: 10/01/1991
Inventor: Carisella, et al.

International Class

C22C 013/00

Comments

No comments for this page
 
 
Forgot password?
Register here