Patent Yard Sign in
Expired Canadian patentCanada

Sanitary absorbent article having flaps

CA 2233808 C · Owner: Johnson & Johnson Inc. · Inventors: Brisebois, Henri; Boulanger, Roger

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A sanitary absorbent article having flaps which substantially continually diverge from their proximal side over large portion of their length preferably until their distal side. The substantially continually divergent portions being preferably substantially straight. The garment-facing surface of the flaps including an adhesive fastener which has a length not less than 85% of the length of the proximal side and preferably not less than 100% of the length of the proximal side. The fastener preferably having reduced adhesive strength in the zones nearer the transverse sides of the flap.

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 31, 1998 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1998
GrantedSeptember 16, 2003
Term endedMarch 31, 2018
Patent numberCA 2233808 C
Classification (IPC)A61F13/58 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 31, 1998Patent grantedSep 16, 2003Term endedMarch 31, 2018

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.