Patent Yard Sign in
Canadian application, no grantCanada

Guard for rotary disc tools

CA 2000441 A1 · Owner: Bolzoni, Emilio · Inventors: Bolzoni, Emilio

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Guard for rotary disc tools comprising a protective casing which wholly surrounds the tool except for one free side a, support which slides in relation to the said guard and, equipment designed to enable the tool to be fitted on the said support.

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 October 11, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 11, 1989
GrantedNo grant recorded
Term endedOctober 11, 2009
Patent numberCA 2000441 A1
Classification (IPC)B26D7/22 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 11, 1989Term endedOct 11, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.