Soft gelatin capsule manufacture
CA 2132933 C · Owner: Meinzer, Armin · Inventors: Meinzer, Armin; Zande, Horst; Brox, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Soft gelatin capsules having a capsule shell comprising gelatin plasticizers and, if desired or required further auxiliary agents, and a capsule filling containing a solvent including a migrateable solvent such as 1,2-propyleneglycol as a solvent in the capsule filling and in the capsule shell. The manufacture of said capsules is improved if in the process for making the soft gelatin capsules the gelatin bands are cooled with a liquid and preferably with water.
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 September 26, 1994 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2016.
- 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.