Dead bolt device
CA 2092447 C · Owner: Florian, David W. · Inventors: Florian, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lock is disclosed which includes a housing having an inside bore, a cylinder selected from a group consisting of interchangeable core cylinders and insert cylinders, the cylinder having an outer contour the, inside bore of the housing being at least as large at any point as the outer contour of the cylinder and a, device for adapting the inside bore of the housing to correspond to the outer contour of the cylinder. Also described is a transmission assembly mounted to the housing and cooperating with the cylinder to impart desired motion to a latch mechanism of the lock. An advantage of the lock is that it may accommodate distinctively different cylinder types with different form, fit and …
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 March 25, 1993 and granted January 6, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2015.
- 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.