Implant inserting device
CA 2206764 C · Owner: Asnis, Stanley E. · Inventors: Lane, Lewis B.; Crombie, John S.; Asnis, Stanley E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An implant comprised a specially adapted bone screw having a threaded shank portion and a sleeve which mates with and operates in cooperation with the threaded shank portion is used with a driver specially adapted for inserting and removing the implant. The implant (20) generates bone compression by itself and can be used either alone or with plates and washers. It is easily inserted into a fracture and also is easily removed from the fracture. The driver comprises an inner rod (64) having a first driver means (82) positioned at the distal rod end. An outer cylindrical portion has a further cylindrical portion (72) integrally attached to its proximal cylindrical end and has a second driver …
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 February 7, 1992 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 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.