Self-supporting, flexible continuous casting starter bar
CA 2096446 C · Owner: Stel-Tek Manufacturing Ltd. · Inventors: Behrends, Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible starter bar (20) has a body which comprises a flexible substantially planar spine (40) on one side a series of, blocks (46) attached to the spine on the other side and a plurality of block support means (64) disposed between adjacent pairs of blocks adapted to protrude from one block of a pair so as to lie in abutting and supporting relationship with the other block of the pair, thereby increasing the effective length of the operatively outer side of the starter bar body so that the starter bar may assume a curved configuration and be self-supporting. The block support mearis are retractable to shorten the effective length of the starter bar body on the operatively outer side so …
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 November 22, 1991 and granted June 10, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2013.
- 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.