Improved hinge with removable pin
CA 2228539 C · Owner: Multimatic Inc. · Inventors: Gruber, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low cost, double shear hinge with a removable hinge pin creates a zero-clearance joint in both axial and radial directions. Bushings are fitted into circular openings in the door side portion of the hinge. A partially internally threaded tube flanged at the following end, is inserted through the bushings and swaged over the bushing at its leading end. After the body side portion of the hinge with corresponding circular openings is aligned with the door side portion a hinge pin with a wider threaded following section and a narrower threaded leading section of identical pitch is rotated through the openings to draw the structure together.
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 February 3, 1998 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2020.
- 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.