System for securement of a mesh screening means and method of installation
CA 2262950 C · Owner: Saab, Thomas L. · Inventors: Saab, Thomas L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for securement of a mesh screening means on the protruding threaded end of a rock bolt inserted into a rock face comprises a push-on gripper plate having a generally planar base portion adapted to overlie the mesh screening means. The planar base portion has a magnetically grippable contact surface for operative engagement with an installation tool. An installation tool is provided having a handle portion with a main body portion rigidly attached thereto. The main body portion has a means for exerting an attractive magnetic force to operatively magnetically engage the magnetically grippable contact surface of the gripper plate and a cavity dimensioned and adapted to …
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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 24, 1999 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2021.
- 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.