Surface material with flow checking recesses having openings for sanitary articles
CA 1305583 C · Owner: Yasuno, Tamio · Inventors: Yasuno, Tamio; Kobayashi, Takatoshi; Yamanoi, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sanitary article comprises an absorbent and a sheet of a surface material to envelop the absorbent the sheet comprising an opaque, hydrophobic film,having recesses in its land portion, the recesses being formed to have a bottom and side walls, the side walls having a slanting part, the slanting part being provided therein with an opening so that the slanting part having the opening may not be covered with the land portion.
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
- Granted July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
- 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.