Hair curler
CA 1102201 A · Owner: Ehmann, Willy · Inventors: Ehmann, Willy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Schulze 3, HAIR CURLER, ABSTRACT OF THE DISCLOSURE A hair curler comprises two like rods extending in a longitudinal direction from one end to another end and a bridge connecting the one ends of the rods to form a hairpin-like shape. The rods are of rounded cross section in a plane transverse to the longitudinal direction. Diametrically opposite outer sides of the rods are undulated. The undulated outer side of one of the rods defines troughs staggered in the longitudinal direction relative to the troughs defined by the undulated outer side of the other rod.
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 June 2, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 1998.
- 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.