Expired Canadian patentCanada
Apertured film facing and method of making the same
CA 1285366 C · Owner: Morris, Ronald R. · Inventors: Morris, Ronald R.
Overview
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apertured plastic film facing material and method for making the same, together with an improved absorbent product formed therefrom, wherein the edge of the apertures is coated with a hydrophilic material. CHC 717
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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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 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.
FiledMay 20, 1987
GrantedJuly 2, 1991
Term endedJuly 2, 2008
Patent numberCA 1285366 C
Classification (IPC)B32B3/10 +1 more
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.