System, method and appliances for applying hair treatments
CA 2509898 A1 · Owner: Pwai, Llc. · Inventors: Russell, Marsha
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hair foil and hair holding system for applying hair treatments has a hair anchoring strip close to or aligned with the leading edge of a foil (40) or a hair holding appliance, by which it is adhered to the scalp in a hand free non lifting relationship. The strip (45) may be the hook component of a hook and loop fastener system. The leading edge (42) may be pinked to provide a pattern of slots (43) for picking and placing hair strands on the foil. The appliance may have provision for attaching a foil blank. The foils may have shoulders (47) extending out wider than the leading edge is long. The foils may have flaps (46) to aid in urging them forward with a pick during usage. 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 December 17, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2025.
- 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.