Coupled sheets for packagings impermeable to gases based on polyolefinic films
CA 1212612 A · Owner: Moplefan S.P.A. · Inventors: Mauri, Luigi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed coupled packaging sheets which are impermeable to gases and vapors and consist of two polyolefinic films coupled together at least one, being an oriented polypropylene film and at least one of the two films being coated with a lacquer which acts as a barrier to gases and vapors, and which is metallized on the face in contact with the other film.
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 October 14, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 2003.
- 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.