Expired Canadian patentCanada
Method and means for hardening and hot-zincing iron and steel products
CA 1074673 A · Owner: Talikka, Raimo · Inventors: Talikka, Raimo
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 method for hot-zincing and hardening iron and steel products. After removing grease from the products they are heated to austenising temperature and are subsequently introduced directly into a zinc bath for simultaneous zincing and hardening.
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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 April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedApril 1, 1980
Term endedApril 1, 1997
Patent numberCA 1074673 A
Classification (IPC)C23F17/00 +2 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.