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Expired Canadian patentCanada

Lithographic moisture system and method

CA 1078666 A · Owner: Addressograph-Multigraph Corporation · Inventors: Mabrouk, Saied A.

CIPO record

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

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Abstract From the Canadian patent

Case No. 1-750110(2), Applicant: Saied Abd-Elrahman Mabrouk Title: LITHOGRAPHIC MOISTURE SYSTEM AND METHOD ABSTRACT OF THE DISCLOSURE, A lithographic duplicator is provided with a moisture train which has self-balancing properties and embodies the formation of a nip between an ink covered roll and a hydrophilic moisture transfer roll with the latter feeding moisture to the surface of the ink covered roll, the ink covered roll being driven in time with the printing cylinder and the moisture covered hydrophilic roll being driven solely by its contact with the ink covered roll. - 1 -

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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 June 3, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 3, 1980
Term endedJune 3, 1997
Patent numberCA 1078666 A
Classification (IPC)B41F3/32 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 3, 1980Term endedJune 3, 1997

Sources & verification

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