Carpet tack strip with urethane base
CA 2071547 A1 · Owner: Anderson, Martin L. · Inventors: Wood, Benny R.; Anderson, Martin L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an improved synthetic resinous formulation utilized to form a substrate means (11) for retention of carpet while securing tack (12) and pre-nail (13) elements in strip form, and with the pre-nails being adapted to secure the substrate means in place along the edge surfaces of the floor and with the tack elements being adapted to retain the edge portions of a carpet in place thereon. The substrate is characterized in that it is formed essentially of a filled polyurethane compound which possesses unusual mechanical properties particularly desirable in the formation of carpet retaining strips.
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 November 15, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.