Interlocking structure
CA 1282931 C · Owner: Weber, Emmanuel D. · Inventors: Weber, Emmanuel D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interlocking structure comprises a plurality of frame members having longitudinally extending channels formed therein. The channels have opposed overhanging lips defining an entrance for the channels that is narrower than an interior portion thereof. The channels are of similar dimensions and are adapted to be placed in opposing relationship. Bridging members are adapted to be fitted into opposed pairs of channels so as to hold together the adjacent frame members in which the opposed pair of channels are formed.
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 April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 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.