Sheeting material and method of manufacturing the same
CA 2063716 A1 · Owner: Anthony, Patrick Lyle · Inventors: Anthony, Patrick Lyle
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sheeting in the form of fibre board comprising cellulose fibres and a thermosetting resin in an amount sufficient to bond the cellulose fibres together when compressed the sheeting having a density of 1100 kg/m3 or greater. The method of manufacturing the sheeting comprises the steps of combining the cellulose fibres and thermosetting resin together and forming a mat or web and, thereafter heating and compressing the mat or web to a density of at least 1100 kg/m3.
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 July 23, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2012.
- 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.