Coupling for anchor rod and sleeve
CA 2039663 A1 · Owner: Mccartney, Clifford A. · Inventors: Mccartney, Clifford A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Docket No. 1015-IR-RD, ABSTRACT OF THE DISCLOSURE An apparatus to be inserted into a bore formed in a structure, includes a sleeve having an aperture. A rod is designed to be inserted into the aperture. The coupling maintains the rod substantially in axial alignment with the aperture prior to insertion of the sleeve into the bore. A recess, which is adapted to interfit with the rod is dis-, posed in the coupling to maintain the axial alignment. The coupling will not interfere with the insertion of the rod into the aperture. This insertion will cause the sleeve to be expanded into contact with a side of the bore.
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 April 3, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2013.
- 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.