Dust protection cover for a rotary grinding tool
CA 2314054 A1 · Owner: Rupprecht, Hans · Inventors: Spangenberg, Rolf; Ohlendorf, Oliver; Chau-Ngoc, Diep
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dust protection cover for a rotary grinding tool and having a base fixedly securable with the tool housing a substantially circular cover body connectable with the base for completely circumferentially covering the grinding, disc securable at the free end of the output shaft of the tool drive motor and, displaceable between a operational position in which the cover body , completely, covers the grinding disc and a release position in which the cover body exposes, a portion of a grinding disc circumference and a connection element(s), projecting from a side of the base adjacent to the tool housing for securing the, cover body to the base in the release position of the cover body.
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 July 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2022.
- 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.