Filler-containing hardenable resin products
CA 1278894 C · Owner: Willis, Frank Marsden · Inventors: Willis, Frank Marsden; Simmons, Walter John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Filler-Containing Hardenable, Resin Products ABSTRACT OF THE DISCLOSURE, A coarse/fine particulate inert solid filler component, e.g. limestone and/or sand, is used in a hardenable resin composition adapted for use in making set products, e.g. a hardened grout for anchoring a reinforcing member in a hole. About from 5 to 50 percent by weight of the filler is a coarse filler minimum is about 1 mm, or a size range which is from 30 to 150 percent of the thickness of the annular layer of hardened grout formed around a reinforcing member. The thus-filled resin composition is readily miscible and flowable even at total filler levels as high as about 88 percent by weight. Rock bolt grouting …
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 January 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2008.
- 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.