Process for the preparation of inducers of non-specific immunity
CA 1338758 C · Owner: Bayer Healthcare Ag · Inventors: Strube, Walter; Mayr, Anton; Thein, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Inducers of non-specific immunity are obtained by increasing the pH of a virus suspension of viruses which elicit non-specific immunity and then heating the pH-increased virus suspension. The pH value can be increased to between about 8 and 11 and heating is carried at temperature between about 50-60°C.
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 December 3, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2013.
- 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.