Curling push-broom
CA 1099862 A · Owner: Thompson, Albert N. · Inventors: Thompson, Albert N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A curling broom of the push-broom type has the active bottom surface provided with a fabric coating replacing the usual natural or artificial bristles. Preferably two types, of fabric are applied one beside the other differing from, each other in coarseness. The generally flat active surfaces of the fabrics are vertically spaced from each other and one of the surfaces is preferably inclined relative to the other whereby a selective combination of polishing and buffing action can be achieved by simply tilting the handle of the broom. The invention improves the action of the broom reduces the manufacturing costs, virtually eliminates some contamination of the ice surface and greatly extends …
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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 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.