Electric hair cutting apparatus
CA 2080902 C · Owner: Braun Aktiengesellschaft · Inventors: Ullmann, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described is an electric hair-cutter with a spacer comb (3) fined on the cutter head and a sliding switch (11) for switching the hair cutter on and off. The invention calls for the hair-cutter to have a pre-selector (60) switch which can be set so that the motor is not switched on until the slider switch locks into a predetermined position.
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 April 23, 1991 and granted June 16, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2013.
- 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.