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Expired Canadian patentCanada

Photographic apparatus for producing multiple image formats

CA 1099976 A · Owner: Volent, Ivan · Inventors: Fermaglich, Saul; Volent, Ivan

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

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Abstract From the Canadian patent

An apparatus of generally known classification which produces photographic records of multiple images in various display formats, i.e. a four-frame six-frame, or, other such multiple frame format arrangement of the images wherein positional movements in the lens assembly typically used to project the image onto the film sheet is relied on to correspondingly position the image on said film sheet is herein significantly changed and, instead the projected image, is positioned by selection of an appropriately pre-positioned lens. Thus, instead of using one universally movable lens a, multiple of differently strategically positioned lenses are operationally available and are separately selected …

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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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 1978
GrantedApril 28, 1981
Term endedApril 28, 1998
Patent numberCA 1099976 A
Classification (IPC)G03B21/10 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedSep 7, 1978Patent grantedApril 28, 1981Term endedApril 28, 1998

Sources & verification

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