Expired Canadian patentCanada
Hydrolysis resistant polyamide compositions and articles formed therefrom
CA 2582413 C · Owner: Pagilagan, Rolando Umali · Inventors: Pagilagan, Rolando Umali; Mestemacher, Steven A.; Martens, Marvin M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polyamide compositions exhibiting superior hydrolysis resistance and pipes and other articles made therefrom are disclosed.
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 October 27, 2005 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 27, 2005
GrantedMay 14, 2013
Term endedOctober 27, 2025
Patent numberCA 2582413 C
Classification (IPC)F16L11/00 +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.