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Expired Canadian patentCanada

Dry-shaving apparatus

CA 1267774 C · Owner: Tietjens, Eduard Willem · Inventors: Wijma, Willem Sjouke; Hoekstra, Albert; Bakker, Eppe

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

PHN 11.886 14-11-1986, ABSTRACT:, Dry-shaving apparatus. The invention relates to a dry-shaving apparatus comprising a housing, a holder for a shear plate which, holder is detachable from the housing and a cutter which is, rotatable relative to the shear plate and which comprises cutting elements having cutting edges at their radial ends. The housing is provided with a guide wall for the cutting elements, which guide wall adjoins the shear plate.

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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 April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
  • 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 17, 1986
GrantedApril 17, 1990
Term endedApril 17, 2007
Patent numberCA 1267774 C
Classification (IPC)B26B19/14 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedDec 17, 1986Patent grantedApril 17, 1990Term endedApril 17, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.