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Expired Canadian patentCanada

Viewfinder eyepiece leveling device

CA 1078242 A · Owner: Panavision Incorporated · Inventors: Gottschalk, Robert E.

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 motion picture camera is mounted upon a gear head for tilting movement, and the camera is provided with a viewfinder eyepiece device mounted to pivot about a horizontal axis. A link is pivotally connected at one end to the viewfinder eyepiece device and is pivotally connected at the other end to a nontilting portion of the gear head whereby movement, of the viewfinder eyepiece device is minimized during tilting movement of the camera.

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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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.
FiledJanuary 3, 1978
GrantedMay 27, 1980
Term endedMay 27, 1997
Patent numberCA 1078242 A
Classification (IPC)G03B19/18 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJan 3, 1978Patent grantedMay 27, 1980Term endedMay 27, 1997

Sources & verification

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