Process for the manufacture of soft gelatin capsules by a drip-feed method
CA 2128243 C · Owner: Alfatec-Pharma Gmbh · Inventors: Werry, Jurgen; Wunderlich, Jens-Christian; Freidenreich, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a drip-feed process for the production of soft gelatin capsules in which the preferably pasty or liquid filling material is covered with a soft gelatin composition, the soft gelatin composition is solidified in a cooling bath comprising a chemically inert deep-cooled, liquefied gas which does not leave behind any biologically unacceptable or harmful residue on the soft gelatin capsule. The cooling bath used is preferably liquid nitrogen.
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 January 18, 1993 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2015.
- 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.