Multilobal fiber with v-shaped ends for carpet yarns
CA 2103081 A1 · Owner: Holland, Tommy T. · Inventors: Holland, Tommy T.; Porter, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described is a synthetic fiber for use in carpets having a, multilobal cross-section, each lobe of said multilobal cross section having two ends, one end being connected to the other lobes, the other end of said lobes radiating outwardly and being Vshaped comprising two arms. 13
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, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2015.
- 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.