Latex for immunoserological tests and a method for the production of the same
CA 1250805 A · Owner: Sekisui Kagaku Kogyo Kabushiki Kaisha · Inventors: Obana, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A latex for immunoserological tests is disclosed which contains polystyrene and/or polystyrene derivative particles which are prepared by polymerizing styrene and/or styrene derivatives in the absence of emulsifying agents. The particles have uniform diameters and a specific gravity of 1.05 or more.
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
- Granted March 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 7, 2006.
- 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.