Expired Canadian patentCanada
Odor transmission-resistant polymeric film
CA 2752306 C · Owner: Edgewell Personal Care Brands, Llc · Inventors: Chomik, Richard S.; Yoho, Mark; Knuth, Rosemary
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A malodor transmission-resistant plastic (10) finding employment in cassettes housing flexible tubular material.
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 April 17, 2003 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 17, 2003
GrantedNovember 19, 2013
Term endedApril 17, 2023
Patent numberCA 2752306 C
Classification (IPC)B32B27/08 +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.