Automatic astragal
CA 1057333 A · Owner: Kawneer Company · Inventors: Hubbard, S. Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An automatic astragal assembly for inclusion or attachment to a door edge comprising an elongated astragal housing mounted on said door and having an outwardly opening longitudinal recess therein, an elongated astragal slidably mounted in said recess, means supporting said astragal in said recess for upward and inward relative movement in said housing in response to lifting of said astragal from lifting means mounted on an inside surface of said door said lift-, ing means including a lift slide mounted on said housing for reciprocal vertical movement and having an L-shaped slot defined therein with an interconnecting horizontal and vertical section and a dead lock …
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 June 26, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 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.