Expired Canadian patentCanada
Ostomy bags, particularly ileostomy bags, and gas filter arrangements for same
CA 1258802 A · Owner: Craig Medical Products Limited · Inventors: Steer, Peter L.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ostomy bag has a filter attached to it by a series of sequentially peelable adhesive annuli.
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 August 29, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 29, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 15, 1986
GrantedAugust 29, 1989
Term endedAugust 29, 2006
Patent numberCA 1258802 A
Classification (IPC)A61F5/44
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.