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Expired Canadian patentCanada

Blade coater

CA 1264615 C · Owner: Beloit Corporation · Inventors: Toyofuku, Toshihiro; Fujiwara, Haruyoshi

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 coating apparatus is disclosed for applying a coating material to the surface of a paper web. The coating apparatus includes a backing roll and an applicator roll which cooperates with the backing roll for defining therebetween a gap for the passage therethrough of the web. The backing roll and applicator roll counter-rotate at given speeds and a nip roll movably cooperates with the backing roll for defining therebetween a nip section. The nip section is disposed downstream relative to the gap such that the web extends progressively through the gap and through the nip section so that the coating material is applied to the surface of the web during passage of the web through the gap and …

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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 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.
FiledNovember 27, 1987
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264615 C
Classification (IPC)B05D1/28 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedNov 27, 1987Patent grantedJan 23, 1990Term endedJan 23, 2007

Sources & verification

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