Expired Canadian patentCanada
Moisture sensing hair grooming device
CA 1232177 A · Owner: Downey, John H. · Inventors: Downey, John H.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hair grooming device such as a comb a heated, hair styler or a curler having a moisture sensing device and an indicator, thereby allowing the user to control the dryness of the hair while styling or curling the hair.
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
- Granted February 2, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 1983
GrantedFebruary 2, 1988
Term endedFebruary 2, 2005
Patent numberCA 1232177 A
Classification (IPC)A45D24/10 +2 more
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.