Sanitary napkin
CA 1182604 A · Owner: Kao Corporation · Inventors: Mizutani, Hiroshi; Sakurai, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a sanitary napkin which is comprised of an internal absorbent medium adapted to absorb bodily discharges and a covering fabric covering at least one surface of said internal absorbent medium and adapted to contact the wearer's skin, the improvement which comprises: said covering fabric has an integrated, two-layer structure comprising an outer layer forming the surface that is adapted to contact the wearer's skin and an inner layer disposed inside of said outer layer said covering fabric consist-, ing essentially of from 30 to 80% by weight of heat-fusible fibers which are fusible at a temperature of from 90° to 140°C and correspondingly from 70 to 20% by weight of …
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 February 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2002.
- 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.