Moisture barrier medical film
CA 1313348 C · Owner: W.R. Grace & Co.-Conn. · Inventors: Mueller, Walter Berndt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible film suitable for medical solution pouches and parenteral materials generally includes a core layer of high density polyethylene, two intermediate layers comprising very low density polyethylene, an outer layer comprising an ethylene propylene copolymer or flexible copolyester, a sealant layer comprising a heat sealable polymeric material such as modified ethylene propylene copolymer and two polymeric adhesive, layers bonding the intermediate layers to the outer and sealant layers respectively.
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 February 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2010.
- 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.