Door catch mechanism
CA 1060499 A · Owner: Access Control Systems Pty. Ltd. · Inventors: Horvath, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catch mechanism is mounted in door frame to provide catch for the bolt of lock on the door. Catch mechanism comprises catch member movable from operative position in which serves as catch and inoperative position in which the lock bolt is released. Catch member is normally releasable by electric operation. However in event of fire heating mechanism to high temperature heat activated locking plunger locks catch member permanently in operative 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
- Granted August 14, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 14, 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.