Peptides having an immunostimulating action, processes for their preparation and their use
CA 1270100 C · Owner: Obermeier, Rainer · Inventors: Mullner, Hubert; Kessler, Horst; Kutscher, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to peptides of the formula II in which W represents Lys (R1), D-lys (R1) Arg (R2) or, D-Arg (R2), X represents Lys (R1) D-Lys (R1), Arg (R2) or, D-Arg (R2), Y represents Asp (R3) D-Asp (R3), Glu (R3) or, D-Glu (R3), U represents Val or D-Val D represents Tyr, D-Tyr, Trp, D-Trp, Phe or D-Phe and in which R1 represents, a urethane-protective group R2 represents a protective, group for the guanidino function and R3 represents an ester-protective group, and wherein (a) all five radicals a represent peptide bonds or (b) one of the radicals a represents a C-terminal OH together with an N-terminal H (a=OH H-) of two aminoacid radicals and the remaining four radicals a each …
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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 June 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
- 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.