Fiberglass dasherboard system
CA 2265300 C · Owner: Mccourt North Construction Company · Inventors: Mcalpine, Franklin D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a structural laminate for use as a dasher board comprising a, first layer of fiberglass a layer of rigid foam made of polyvinylchloride a , first bonding layer, operatively arranged to bond with the first fiberglass layer and the foam layer, a second layer of, fiberglass, and a second bonding layer operatively arranged to bond with the second fiberglass, layer and the foam layer. The invention is also directed to a method of making the structural, laminate, comprising the steps of bonding a first layer of fiberglass to a foam layer; bonding a, second layer of fiberglass to the foam layer; and sealing the bonded layers of fiberglass and, foam. The …
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 11, 1999 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2021.
- 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.