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Expired Canadian patentCanada

Base having anti-vibration means

CA 2089538 C · Owner: Polit, Neil A. · Inventors: Polit, Neil A.; Murad, George B.

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

A base for operative association with an operating mechanism sensitive to horizontal vibration such as an ink jet, printer, supports a horizontal document feeder plate and associated drive means operative to advance documents in sequential fashion from a stack toward the operating mechanism. A drive linkage interconnects a rotatable drive shaft to the feeder plate to effect horizontal reciprocating movement thereof. Counterweight means are associated with the drive means so as to substantially offset or ify horizontal inertia forces imparted to the base by the feeder plate whereby to minimize horizontal vibration of the base. In an embodiment utilized for intermittent feeding of documents …

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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 February 15, 1993 and granted May 5, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1993
GrantedMay 5, 1998
Term endedFebruary 15, 2013
Patent numberCA 2089538 C
Classification (IPC)B41J19/04 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 15, 1993Patent grantedMay 5, 1998Term endedFeb 15, 2013

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