Apparatus and method for selective coloring of hair
CA 2046897 A1 · Owner: Haddad, Khalil · Inventors: Haddad, Khalil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a device and a method of selective coloring of hair. The device comprises an open helmet (10) made of a circumferential head band (12) and one or more brace bands (14) extending from the head band (12) over the crown of the wearer's head. The helmet (10) has a plurality of fastening means (28) e.g. pins , with knob-like ends, adapted to accommodate a plurality of eyelets(48, 49). The head band (12) is placed over the wearer's scalp just below the hairline. The brace band (14) then defines two hair sectors (24, 26) on the scalp. Strands of hair from each sector are consecutively placed in the plastic bags (34) which are then attached by way of the eyelets (48, 49) to the …
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 June 4, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2012.
- 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.