Flexible packaging apparatus
CA 1267600 C · Owner: Becton, Dickinson And Company · Inventors: Rathemacher, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and apparatus are provided for the continuous and rapid production of a plurality of flexible packages containing a non-solid substance such as an ointment, by continuously forming and vacuum sealing the packages from two webs of material in the nip of cooperating roller surfaces. The packages each contain a precise quantity of medication which may be, for example the kind of medication which is self-administered by the user by transdermal application. The method and apparatus herein joins together two specially prepared webs of material continuously drawn from supply rolls while at the same time incorporating and vacuum sealing a desired quantity of the medication therebetween.
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
- Granted April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- 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.