Expired Canadian patentCanada
Lead-free alloy containing tin, zinc, indium and bismuth
CA 2118433 C · Owner: Indium Corporation Of America (The) · Inventors: Slattery, James A.; Sovinsky, John R.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lead-free alloy suitable for soldering comprising tin, zinc, indium and bismuth.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 19, 1994 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 19, 1994
GrantedNovember 24, 1998
Term endedOctober 19, 2014
Patent numberCA 2118433 C
Classification (IPC)C22C13/00 +1 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.