Clip for building construction
CA 2022700 A1 · Owner: Duchene, Richard Paul · Inventors: Duchene, Richard Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elongated clip is used in the construction of a room including wall and ceiling panels and frame members against which the panels abut. The clip is nailed or screwed to the frame member and supports a pair of panels which make up a corner of the room. The clip includes an elongated slot for receipt of the entire margin of one of the panels and an elongated surface against which the entire end wall of the other panel abuts.
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 August 3, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 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.