Filled lab pattern-coated films
CA 2346809 A1 · Owner: 3M Innovative Properties Company · Inventors: Randen, Neil A.; Fagan, Mark E.; Bohlke, Susan N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coated film is provided having a textured film with a top surface and a bottom surface, wherein at least one LAB coated area and at least one uncoated area are on the top surface of a textured film and the appearance of the , coated and uncoated areas on a textured film is visibly uniform and generally provides a coated film that has a surface that has visually indiscernible areas, even when at least one portion of the film is coated with particulate filled LAB, and the remainder of the film is uncoated.
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 July 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2021.
- 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.