Mold for manufacturing polyurethane parts for using the rim process
CA 2069061 A1 · Owner: Schulte, Klaus · Inventors: Mueller, Heinz; Schulte, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mold for manufacturing polyurethane parts using the RIM process, has two mold halves which between them enclose a mold cavity. The mold cavity is sealed off from the outside by a sealing surface. A gap of 15 to 30 mm depth and 0.15 to 0.25 mm width is provided between the mold cavity and the sealing surface. Mo3756, Le A 28 352-US/CA
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 May 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2014.
- 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.