Method of producing endo- -n-acetylgalactos-aminidase from microorganisms
CA 1333698 C · Owner: Sumitomo Seika Chemicals Co. Ltd. · Inventors: Kumagai, Hidehiko; Yamamoto, Kenji; Kadowaki, Setsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method is disclosed of providing endo-.alpha.-Nacetyl-galactosaminidase (endo-.alpha.-GalNAcase) from a microorganism belonging to the genus Alcaligenes. The endo-.alpha.-GalNAcase is very useful in the analysis of the structure and function of mucin-type sugar chains of glycoproteins, since it is an enzyme capable of cleaving Oglycosidic linkages of sugar chains of glycoproteins releasing the sugar chain from the protein.
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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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2011.
- 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.