Fastening apparatus for and method of setting fastening elements
CA 2204957 C · Owner: Hilti Aktiengesellschaft · Inventors: Gschwend, Hans; Noser, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fastening apparatus is formed of a drilling tool for drilling an axially extending borehole in a receiving material. The drilling tool has a cutting member at its leading end and its trailing end is arranged to be inserted into a chuck in a hand held drilling device capable of rotating the drilling tool and providing axially directed hammer-like blows. A tubular fastening element has a bore extending between its leading and trailing ends and is arranged to be anchored in the borehole formed by the drilling tool. The diameter of the bore in the fastening element is greater than the outside diameter of a cutting circle formed by the cutting member of the drilling tool. The drilling tool …
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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 May 9, 1997 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2019.
- 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.