Dimensionally stable cellulosic backing web
CA 1114564 A · Owner: Georgia-Bonded Fibers, Inc. · Inventors: Grard, Henry P.; Mergelsberg, Edmond M.; Lavietes, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved dimensionally stable backing web especially for resilient, flooring product and linoleum comprising cellulosic fiber, a binder, antioxidant fungicide and glass fiber, as well as optionally dyes or pigments surfactants and vulcanizing agents. Also optionally present are calcium silicate mineral fiber or synthetic fiber such as polyolefin, polyester, nylon, acrylic or modacrylic fiber a cellulose acetate or mixtures thereof The binder can be a natural rubber or synthetic rubber latex or mixtures thereof. The synthetic rubber latex is preferably selected from the following styrene-butadiene; carboxylated styrene-butadiene polyacrylic ester, poly-, vinyl acetate; polyisobutylene a …
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.