Security device
CA 1082249 A · Owner: Rosenberg, Sheldon · Inventors: Rosenberg, Sheldon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A security device for preventing unauthorized separation of a door from a cooperating buck assembly. The device comprises, in combination: a first plate member carried by the door and extending in a plane parallel thereto; a second plate member carried by the buck assembly and extending in a plane transverse to the door the second, plate member having an anti-tampering portion projecting beyond the edge of the buck assembly toward the first plate member; a Z-shaped support element separately mounted on the buck assembly in juxtaposition with the second plate member, the support element including an edge flange in parallel abutting relationship with the anti-tampering portion and an …
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 July 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 1997.
- 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.