Storage container for weakly acidic solution formulation containing human growth hormone, injection cartridge therefor and storage method therefor
CA 2368189 A1 · Owner: Tanaka, Katsumi · Inventors: Yoshimoto, Atsushi; Morita, Shigetoshi; Tanaka, Katsumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention has the purpose of offering a storage container wherein flocculation and nebulation of hGH does not occur during storage of an hGH solution. A rubber stopper is formed of rubber such that when one such rubber stopper is immersed in 1ml of a buffer solution having a pH of approximately 5.5 to 6.5 and containing a surfactant stored while shaking for one week at a temperature of 25 ~C, then the metal ion elution rate in the buffer solution is measured using atomic absorption spectrophotometry the elution rate of , polyvalent metal ions is 50 ppm or less.
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 March 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2022.
- 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.