Menstrual tampon
CA 1115001 A · Owner: Molnlycke Ab · Inventors: Widlund, Leif U.R.; Strandberg, Kerstin A.H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a menstrual tampon comprising one or more webs 1 rolled, up in several layers around each other of moisture-absorbing, material, a pull string 2 is anchored and extends out of the tampon. This string is laid around the web 1 in at least two consecutive loops which, with portions 6 running back and forth approximately longitudinally to the tampon surround and are in, contact with at least two opposite side edges 7,8 of the web 1 of absorbent material, and extend out of one end of the tampon. (Fig. 2.)
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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
- 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.