Hygienic absorbent pads
CA 1266745 C · Owner: Howes, John Gordon Bernard · Inventors: Howes, John Gordon Bernard; Williams, Pamela Joan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hygienic absorbent pad is described which comprises an elongate absorbent core, a liquid pervious sheet over the front face of the absorbent core and a liquid absorbbent core, which barrier sheet has longitudinal edge portions which cover the longitudinal sides of the absorbent, which longitudinal edge portions have a layer in contact with a surface thereof of a water absorbing polymer such as a hydrophilic polyurethane which is capable of inhibiting leakage of body fluids from the front surface of the absorbent pad to the sides thereof.
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 March 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2007.
- 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.