Teardrop shaped pressurizing apparatus
CA 2248864 C · Owner: Alton Dean Medical · Inventors: Ford, Dixon A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressurizing apparatus for pressurizing fluid contained in a patient fluid bag (14) is described which has a novel teardrop pressurizing chamber. The pressure apparatus includes a door and base which each has complimentary teardrop cavities formed therein. When the door (24) is in the closed position over the base (26), the teardrop pressurizing chamber is formed. A teardrop bladder bag (90) is located interior to the base and can be inflated to apply pressure to a patient fluid bag. A regulator (16) allows adjustment of the desired pressure. A gauge allows monitoring of the pressure. A valve allows the pressurizing device to be turned on and off. The teardrop pressurizing …
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 March 25, 1997 and granted December 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2019.
- 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.