Fluid collection cassette identification scheme
CA 2265722 C · Owner: Appelbaum, Peter Francis · Inventors: Perkins, James Taylor; Appelbaum, Peter Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a method of identifying whether a particular fluid collection cassette (10) is designated to have a particular use such as , posterior surgery or anterior surgery. A reflux bulb (26) attached to a fluid collection cassette has a material disposed on or in said reflux bulb in a predetermined location. A sensor attached to the housing senses the existence or non-existence of the material and sends a signal to a controller.
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 September 9, 1997 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.