Low-profile, recessed stop-cock valve for trocar assembly
CA 2482701 C · Owner: Albrecht, Thomas E. · Inventors: Albrecht, Thomas E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trocar assembly includes a trocar sleeve having a trocar housing and a trocar cannula. The trocar sleeve includes a stop-cock valve positioned for selectively controlling the passage of an insufflation fluid into the trocar cannula and the stop-cock valve includes a valve lever. The trocar housing includes a recess shaped and dimensioned for receiving and covering at least a portion of the valve lever therein.
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 28, 2004 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2026.
- 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.