Nail plug
CA 1195159 A · Owner: Tox-Dubel-Werk, R.W. Heckhousen K.G. · Inventors: Riedel, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nail plug comprising a plug body adapted in outer diameter to a plug bore hole and having a central nail insertion hole into which expansion means such as a nail or screw can be driven. To enable the nail plug to be used both in hollow building materials and in solid building materials and in conjunction with boards or the like the, plug body comprises a plurality of partially superimposed projections which project beyond its periphery and which are resilient when deflected radially inwardly and after radial deflection produce a radially outwardly directed expansion force which is intensified by driving in expansion nail into the insertion hole. The body is provided by a plurality of …
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 October 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2002.
- 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.