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Expired Canadian patentCanada

Envelope supply pack retainer

CA 1308426 C · Owner: Foster, Dean H. · Inventors: Foster, Dean H.

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

Abstract of the Disclosure An envelope and document feeder is disclosed within which there is a first stationary frame, and a second movable frame. The feeder has a support surface for a stack of articles to be fed seriatim, and has an apparatus which is engaged by the second movable frame to permit feeding. When the second frame is pivotably raised, the engaging apparatus prevents the articles from sliding down into the throat of the feeder.

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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 October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
  • 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 5, 1988
GrantedOctober 6, 1992
Term endedOctober 6, 2009
Patent numberCA 1308426 C
Classification (IPC)B65H3/52 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 5, 1988Patent grantedOct 6, 1992Term endedOct 6, 2009

Sources & verification

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