Door hinge
CA 1061515 A · Owner: Mckinney Manufacturing Company · Inventors: Gwozdz, Joseph W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure One of a pair of hinge leaves has an integral open outer loop extending along one edge and the other leaf has an integral inner loop extending along one edge and disposed inside the outer loop. The inner loop is mounted on a hinge pin extending through it and provided with longitudinally spaced exposed areas encircled and engaged by spacing members rigidly mounted in the outer loop to hold the pin in predetermined position in that loop. The opposed surfaces of the two loops are held apart by the pin and spacing members to prevent the loops from rubbing together when the hinge is opened and closed. By making the hinge pin hollow and extending a torsion rod through …
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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- 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.