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Expired Canadian patentCanada

Windshield scraper

CA 2028282 C · Owner: Perez, Ramon · Inventors: Perez, Ramon

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

An electrically operated scraper for removing ice and snow from the windshield of an automotive vehicle includes a casing with a cylindrical motor housing at one end thereof an elongated handle extending outwardly at an angle from the motor housing and a cowl integral with the motor housing containing a generally frusto-conical disc for rotation by a motor in the motor housing; bristles extending outwardly and downwardly from an annular shoulder on the disc and radially, extending blades on the circular outer surface of the disc for scraping ice from the windshield during rotation of the disc.

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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

  • Filed October 23, 1990 and granted September 6, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 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.
FiledOctober 23, 1990
GrantedSeptember 6, 1994
Term endedOctober 23, 2010
Patent numberCA 2028282 C
Classification (IPC)A47L1/05 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 23, 1990Patent grantedSep 6, 1994Term endedOct 23, 2010

Sources & verification

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