Process and apparatus for treating leather and the like
CA 2253486 A1 · Owner: Vico, Emilio · Inventors: Vico, Emilio; Ciucani, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the process of treating leather and the like spread pieces of , leather to be treated (1) are put on respective open supports (2). These supports (2), with spread pieces of leather carried thereon are introduced , into at least one container (4) kept in depression and sealed for the introduction therein of suitable treating liquid solutions so that at least soaking, liming, pickling, tanning and re-tanning steps can be performed on the leather pieces. Each liquid solution (5) is swirled during the corresponding leather (1) treatment step.
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 April 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2019.
- 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.