Expired Canadian patentCanada
Solder paste and vehicle therefor
CA 1237643 A · Owner: Scm Corporation · Inventors: Hwang, Jennie S.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An essentially nonaqueous water-rinsible, readily fusible, vehicle for paste of powdered solder is comprised of a dispersion of flux consisting essentially of alkali metal hydroxide in liquid polyol and water soluble, normally solid synthetic wax.
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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
- Granted June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
- 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 30, 1984
GrantedJune 7, 1988
Term endedJune 7, 2005
Patent numberCA 1237643 A
Classification (IPC)B23K35/36
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.