Venting assembly for a sealed body fluid drainage device
CA 1188180 A · Owner: Bard (C. R.), Inc. · Inventors: Norton, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vent assembly for a closed body fluid drainage system having a fluid retaining bag with a body engageable fluid draining tube extending therefrom. The venting assembly comprises in, spatial relationship, an outer, gas permeable liquid-wetting, bacteria filter, and an inner gas permeable, liquid-repellent, filter. In use the vent assembly provides for the free exchange of gases flowing into and out of the fluid drainage system while effectively precluding entrance of bacteria and the like. 13
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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
- 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.