Door opener with a lockable, pivotable latch
CA 2124125 C · Owner: Rutherford, John S. · Inventors: Gonser, Gerhard; Fuss, Fritz Helmut; Rutherford, John S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A door opener with a pivotable latch for fitting in a door frame, where a door engages in its closed position with a bolt on a locking surface of the latch for fixing the door position in the door frame and which is characterized in that the latch has a latch base and at least one adapting element the locking surface is formed on the adapting element the, adapting element is connectable to the latch base and the adapting element has a predeterminable thickness for the adjustment of the door in the closed position.
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 May 24, 1994 and granted December 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2016.
- 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.