Continuous hinge with improved bearing design
CA 2053136 C · Owner: Bobrowski, Louis G. · Inventors: Kon, Richard H.; Bobrowski, Louis G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extruded hinge with a multiplicity of bearing assemblies spaced along its length has a pair of abutting hinge leaves with mounting portions and pivot portions with convexly arcuate surfaces extending along their abutting edges and intermeshing gear teeth extending along the length thereof. The pivot portions have channels in their surfaces opposite the arcuate geared surface, and the hinge leaves have pairs of axially offset, opposed cooperating cutouts extending through the pivot portions. These cutouts provide a center portion in which the cutouts are aligned and recesses at the axial ends thereof in opposite hinge leaves. An elongated lateral bearing member has a cavity therewithin …
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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 October 10, 1991 and granted September 20, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 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.