Expired Canadian patentCanada
Threshold assembly
CA 2257475 C · Owner: Lohr, Helmut · Inventors: Lohr, Helmut
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A threshold assembly comprising a sill and a pair of lateral brackets which are upwardly extending and oppositely facing. Each lateral bracket is attached at the lower outside part of, each jamb of a door frame.
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 January 7, 1999 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 7, 1999
GrantedApril 25, 2000
Term endedJanuary 7, 2019
Patent numberCA 2257475 C
Classification (IPC)E06B1/70 +1 more
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.