Expansion peg
CA 1292898 C · Owner: Barthomeuf, Jean-Paul · Inventors: Barthomeuf, Jean-Paul; Revol, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An expansion peg is provided including a tubular socket threaded at one end and split and expandable at the other end, inside the socket a first, wedge intended to come into abutment against the bottom of an anchorage hole and a second wedge detachably secured to the first one and intended, under the action of a striking tool, to become disengaged from the first wedge and to cooperate therewith for causing expansion of the split end of the socket.
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
- Granted December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
- 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.