Lps-containing analgesics and veterinary analgesics
CA 2049533 A1 · Owner: Soma, Gen-Ichiro · Inventors: Yoshimura, Kiyoshi; Mizuno, Den'Ichi; Oshima, Haruyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An analgesic composition comprising an effective amount of at least one member of LPS whose macrophage activation ED50 is 0.4 - 100 ng/ml of culture solution in terms of its limulus testpositive LPS content observed on a sigmoid curve Prepared by determining the ability of the LPS to activate the TNF productivity of macrophage cultured in vitro, and plotting the macrophage activation ability (%) along the axis of ordinate wherein the ability is estimated to be 0 % in the case where it corresponds to the quantity of TNF produced by macrophage with no LPS added thereto, and 100 % is assigned to the macrophage activation ability which provides the maximal and constant quantity of TNF produced …
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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 August 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.