A sanitary napkin or incontinence guard
CA 2077915 C · Owner: Sca Hygiene Products Ab · Inventors: Kjellberg, Monica
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an absorbent article such as a sanitary napkin, a , panty guard or an incontinence guard compris-, ing an absorbent pad enclosed in a casing (1 2). The invention is , characterized in that the absorbent body (3) comprises a first absorbent layer (5) which includes a mixture of hydrophilic fibres and superabsorbent material, and a second absorbent layer (6) of liquid-absorbent fibre material which is highly compressed and thereby has good liquid-spreading ability. The first absorbent layer (5) is placed on that side of the article which is intended to face towards the wearer in use, and the second absorbent layer (6) is in direct connection with the fist absorbent …
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 March 26, 1991 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2013.
- 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.