Coding of absorbent materials
CA 1283814 C · Owner: Ball, Jeffrey Maurice · Inventors: Ball, Jeffrey Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for marking a diaper fabric which comprises applying to the fabric one or more images by means of an ink jet printing technique during the fabrication of the diaper from its component materials. Preferably the invention is used to apply a fluid indicator fluid to that face of the impervious layer to be in contact with the absorbent layer during the manufacture of the composite diaper fabric, the other face of the absorbent layer being that which is to be directly or indirectly in contact with a wearer of the diaper. It is also preferred that the indicator fluid comprise a water-soluble dyestuff whereby the indicator is rendered mobile upon contact …
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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 May 7, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 7, 2008.
- 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.