Anchor set tool
CA 2019875 C · Owner: Diversified Fastening Systems, Inc. · Inventors: Crawford, Danny E.; Rogge, Doug
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool adapted for use with a drill for installing screw anchors in concrete or masonry walls or the like having a sleeve type body, a bit holder slidably located in the body a drill bit, with a handle secured in the bit holder a coil spring seated on, a collar of the bit holder and extending around the bit and a, nut driver secured to the front end of the body. The bit holder is adapted to receive the bit handle and to also serve as a stabilizer for the bit and the coil spring. The nut driver is formed to guide the bit and to shield the front end of the bit from contact with drive members that may be secured in the nut 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 June 26, 1990 and granted December 24, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2012.
- 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.