Reamer/wrench/post kit
CA 2106783 C · Owner: Weissman, Bernard · Inventors: Weissman, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a compact and convenient dental tool container which is particularly useful for storing dental posts, post wrenches and reamers; and stops for reamers, plus a gauge, coordinating several of a dentist's requirements in a helpful way. A handheld circular tool holder (10, 710) has a number of peripheral compartments (18, 118) for the tools and a selector lid (12, 112) rotatable on the tool holder which selector lid has an opening (48, 148) to access the peripheral compartments. Optionally, a secondary compartment (26) and access opening in the lid provide storage for the post wrenches. A novel breakaway tab (50) locks the lid closed for distribution and marketing and …
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 31, 1992 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 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.