Solder-coating method, and solder paste suitable for use therein
CA 2134632 A1 · Owner: De Langen, Michael T. W. · Inventors: De Langen, Michael T. W.; Van Gerven, Johannes A. H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Solder-coating method, and solder paste suitable for use therein" A method of solder-coating a metallic pad provided on a substrate whereby at least the surface of the pad is provided with a deposit of solder paste which, paste comprises a suspension of metallic solder particles which when molten, have a, surface energy lower than the critical surface energy of the metallic pad but higher than the critical surface energy of the substrate surface outside the borders of the pad whereby application of heat causes metallic solder particles within the paste lying upon the pad to melt and fuse together into an essentially continuous metallic solder layer whereas the metallic solder particles …
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 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 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.
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.