Surgical retractor
CA 2075233 C · Owner: United States Surgical Corporation · Inventors: Matula, Paul A.; Remiszewski, Stanley H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel surgical retractor is provided including a handle assembly a, housing and a collapsible retractor assembly connected to a distal end of the housing. The handle assembly includes a stationary handle in cooperation with an actuating structure for manipulating the collapsible retractor assembly through the housing. The handle assembly may be configured in a variety of forms including palm grips, pistol grips, axial grips, ring grips etc. The housing includes a, tubular structure having an inner tube axially disposed within an outer tube. The outer tube is fixed in the stationary handle with the inner tube passing through the outer tube and connected to the actuating structure. Where …
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 August 4, 1992 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2014.
- 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.