A metallic strip and method and apparatus for working a metallic strip
CA 2300443 A1 · Owner: Trico Products Corporation · Inventors: Damm, Oliver Frank Rudolf August; Green, Warwick John; Ivanchev, Lillian Hristov
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of working a length of metallic strip includes the steps of positioning the strip on a former and forming the strip on the former into a predetermined shape while subjecting it to a heat treatment process. The invention also relates to a length of metallic strip and to an apparatus for use in working a length of metallic strip.
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 August 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2020.
- 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.