Expired Canadian patentCanada
Process for the preparation of a carrier particularly used serological reactions as well as a carrier produced according to the process
CA 1012460 A · Owner: Wojewo?Zka Stacja Krwiodawstwa · Inventors: Kosmiderski, Szymon; Polak, Slaw
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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
- Granted June 21, 1977. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 1994.
- 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—
GrantedJune 21, 1977
Term endedJune 21, 1994
Patent numberCA 1012460 A
Classification (IPC)G01N33/55 +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.