Patent Yard Sign in
Expired Canadian patentCanada

Mycobacterium chelonae polar glycopeptidolipids-based immune booster medication

CA 2063721 C · Owner: Neway, Tsehay · Inventors: Neway, Tsehay; Pilet, Charles

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Pharmaceutical composition containing as an active ingredient an extraction fraction of at least partially purified formula 1 Mycobacterium chelonae polar glycopeptidolipids (see Figure I). Application to the stimulation of non-specific immunity in humans and animals.

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 June 6, 1991 and granted October 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 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.
FiledJune 6, 1991
GrantedOctober 27, 1998
Term endedJune 6, 2011
Patent numberCA 2063721 C
Classification (IPC)A61K39/39 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJune 6, 1991Patent grantedOct 27, 1998Term endedJune 6, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.