Bi-directional razor structures and systems
CA 2199129 C · Owner: Andrews, Edward A. · Inventors: Andrews, Edward A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Single-head razor devices (240) for shaving in two opposite directions without lifting the razor's head (245) from the skin to be shaved are provided. The razor head (241) may be constructed as a disposable cartridge if desired. Two pairs of narrow, razor blade strips are positioned within each head with one , pair of blades extending in one direction and the other extending in an opposite direction. The head (241) remains engaged upon the skin for cutting hair in both directions, and may be rigidly or pivotally attached to the handle (242). Several different constructions and classes of assembled bidirectional razor head structures are disclosed. The blades may be arranged in one or …
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 September 6, 1994 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2016.
- 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.