Coverall for protection against steam jets
CA 2017839 C · Owner: Wiseman, Timothy Robert · Inventors: Wiseman, Timothy Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coverall is provided for protecting its wearer against jets of steam. The coverall comprises an outer shell of a woven fabric of poly(p-phenylene terephthalamide) continuous filament yarns weighing at least about 230 g/m2, laminated on its outer surface to a layer of aluminum. An adjacent insulating inner liner is also provided having, fastened together an outer and, an inner woven fabric between which are multiple fibrous layers and at least one separate film layer.
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 May 30, 1990 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 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.