Vaccines based on modified type 1 bovine herpesviruses
CA 2085191 C · Owner: Flob, Georg · Inventors: Thein, Peter; Flob, Georg; Strube, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to vaccines based on type 1 bovine herpesviruses (BHV-1) which contain modifications in regions of their genome which code for nonessential parts of essential proteins. It is possible with the aid of these vaccines to differentiate immunised from non-immunised cattle. The invention furthermore relates to processes for the isolation and preparation of the modified BHV-1 strains, isolation and preparation of the modified proteins and peptides.
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
- Filed December 11, 1992 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2014.
- 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.