Cleaning comb with teeth that are rugged on their peripheral surface and method of manufacturing a high mechanical strength cleaning comb
CA 2244552 C · Owner: Assistance S.R.L. · Inventors: Sanz, Juan Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cleaning comb 1 with teeth 3 that are rugged on their peripheral surface and a method of manufacturing a high mechanical strength cleaning comb 1. The comb 1 includes a plurality of teeth 3 arranged parallel to each other with a spacing of under 100 µm which are rugged on their peripheral surface for the purpose of more effectively removing foreign elements and smaller particles attached to the hair. The teeth 3 have a total length and a relatively large useful length i.e. a portion that protrudes from the handle and they have a diameter of over 1 mm. In order to give the comb a high mechanical strength the method of manufacturing the comb includes …
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 30, 1998 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2020.
- 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.