Canadian application, no grantCanada
Method and system for inerting polymeric film producing machines
CA 2299033 A1 · Owner: De Wilde, Robert Marcel · Inventors: Duro, Pascal Yves; De Wilde, Robert Marcel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a method and system for using laminar barrier inerting techniques to shroud a selected area in an open space covering the polymeric film outlet and/or raw material inlet with inert gas.
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 February 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 2000
GrantedNo grant recorded
Term endedFebruary 15, 2020
Patent numberCA 2299033 A1
Classification (IPC)B29C48/08 +2 more
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.