Accessory for an angle grinder
CA 2187017 C · Owner: Van Osenbruggen, Anthony Alfred · Inventors: Van Osenbruggen, Anthony Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Accessories for an angle grinder include a rotary disk cutting tool (2204, 2207) and rest means in a rest zone for supporting the grinder on a surface (2200) to be shaped. The rest means may be a non-rotating nose (2205) beneath the grinder (2201), alternatively a rubbing contact mounted on a flat tool or simply part of a convex tool (2207). Tilting the grinder about the rest means gives effective control of the tool. Steeper tilts cause the cutting surface to bite more deeply into the work. The grinder is stroked toward the user with the cutting zone (2206) trailing. Most disks are perforated. Work to be shaped can be seen through the spinning disk during use.
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 May 3, 1995 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2017.
- 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.