Method of making a mold for patterned surface articles
CA 2340453 A1 · Owner: Geissler, Gary J. · Inventors: Benson, Gerald M.; Paulson, Verlyn H.; Bacon, Chester A. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for making a substantially cylindrical tool from a substantially planar substrate wherein the tooling , has at least one patterned surface (41). The resulting tooling includes a patterned surface (41) with a sufficiently strong weld (44) that is capable of producing an article having a pattern surface that has a relatively narrow and preferably cosmetically pleasing seam line (42'). Such articles include retroreflective sheeting, structured abrasive articles adhesive articles , suitable for use in personal care products and the like.
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 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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.
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.