Expired Canadian patentCanada
Selected peptides of the group-specific antigen (gag) of human immunodeficiency virus (hiv), the preparation and use thereof
CA 2057612 C · Owner: Niedrig, Matthias · Inventors: Wolf, Hans; Niedrig, Matthias; Modrow, Susanne
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to selected peptides of the HIV gag protein and derivatives thereof which comprise at least one of the two peptide sequences NPGLLETSEGCAQ and AATLEEMMTA and are not larger than 50 amino acids.
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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
- Filed December 13, 1991 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 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.
FiledDecember 13, 1991
GrantedFebruary 5, 2002
Term endedDecember 13, 2011
Patent numberCA 2057612 C
Classification (IPC)C07K14/16 +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.