Razor head, in particular a razor blade unit of a wet razor
CA 2083767 C · Owner: Althaus, Wolfgang · Inventors: Althaus, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A razor head, particularly a razor blade unit arranged on the front end of a handle of a wet razor has a front guardbar, 12 and a rear cover cap 10 comprise a plastic body 1 in which a single or twin blades 2 made from steel are fixedly arranged the, cutting edges 3 of which are protected by extending protective wires 11. The razor blades 2 consist each of a steel strip of width (B) less than 5 mm and a thickness (S) between 0.05 and 0.25 mm, of a chromium-Molybdenum steel composition having a hardness greater than 620 Vickers-standard with retained austenite less than 32% in a single piece without perforations holes or the like. Each blade is placed free of vibration in the plastic body 1 …
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 November 25, 1992 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2014.
- 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.