Multi-use lock cylinder and method of assembling it
CA 1307126 C · Owner: Marks, George R. · Inventors: Marks, George R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A lock cylinder for use with either a deadbolt lock or a key-in-the-knob lock. The lock cylinder (31) includes a hollow cylindrical body (35) having a radially projecting pin-containing chamber (34), extending along the length of the body, and a cylinder plug (36) rotatably accommodated within the body. The plug holds a series of pins which can, be brought into alignment with the pins in the chamber and, the plug has a slot for accepting a key. Two tailpieces are provided, either of which may be alternatively secured to the cylinder plug in non-rotatable relationship to the plug. One of the tailpieces (44) is cooperable with the mechanism for operating a deadbolt …
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 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2009.
- 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.