Method/apparatus for detachably joining two members
CA 2074189 A1 · Owner: Harding, Claude J. · Inventors: Harding, Claude J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are disclosed for detachably joining two members (21/22; 51/52) at a plurality of points along their corresponding edges (23/24; 53a/54) and without longitudinal displacement of these edges during and after closure of the joint. A movable wedge means (44; 61) is advanced between pairs of force receiving points (35-38/41, 42; 55, 58) connected to each of the two members. As the wedge means is advanced in the apex direction the, pairs of points are forced apart and in direct response, the, corresponding edges are drawn together. Variations on two fundamental embodiments are disclosed, one is linear and the other is circular. In the linear embodiment, two doors panels or …
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 November 13, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2013.
- 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.