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Expired Canadian patentCanada

Extensible apparatus

CA 1266252 C · Owner: Wimberley, Ronald J. · Inventors: Wimberley, Ronald J.

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

Highly flexible extensible apparatus for employing an end-use work tool for one of multiple purposes characterized by combinations of a pivotal base; main support structure; pivotally mounted support structure; extensible base unit having first and last respective pairs of booms and levers; attachments for the work tool; and a plurality of extension units each comprising respective pairs of booms and levers. Preferably the, base comprises an upper base plate that is rotatably mounted on a lower base plate to afford 360° of rotation. In a still more flexible embodiment a second pivotal, support structure can be employed at the end of the extensible apparatus extending from the first either …

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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 February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 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.
FiledOctober 28, 1985
GrantedFebruary 27, 1990
Term endedFebruary 27, 2007
Patent numberCA 1266252 C
Classification (IPC)E02F3/34

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedOct 28, 1985Patent grantedFeb 27, 1990Term endedFeb 27, 2007

Sources & verification

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