Eva yarn compositions
CA 1108813 A · Owner: Bobtex Corporation Limited (The) · Inventors: Bobkowicz, Andrew J.; Slanik, Josef M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a method of preparing a yarn product wherein fibers adhere to a central portion of a polymeric material which comprises a polymeric alloy having as a first component a thermoplastic material and as a second component an ethylene vinyl acetate copolymer. The use of an ethylene vinyl acetate copolymer improves the manufacturing conditions of the yarn and imparts desirable characteristics to the final product.
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
- Granted September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 1998.
- 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.