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Expired Canadian patentCanada

Absorbent cleaning pad and method of making same

CA 2561475 C · Owner: Glaug, Frank S. · Inventors: Glaug, Frank S.

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

A surface cleaning pad comprising a pad body and an attachment surface associated with the pad body and positioned to face a cleaning implement is provided. The attachment surface comprises a substantially hydrophilic portion and a substantially hydrophobic portion.

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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 September 28, 2006 and granted March 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 2006
GrantedMarch 26, 2013
Term endedSeptember 28, 2026
Patent numberCA 2561475 C
Classification (IPC)B32B3/14 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 28, 2006Patent grantedMarch 26, 2013Term endedSep 28, 2026

Sources & verification

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