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Expired Canadian patentCanada

Microfiche recording system

CA 1160878 A · Owner: Energy Conversion Devices, Inc. · Inventors: Klose, Peter H.; Ovshinsky, Herbert C.

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

An improved annotatable microfiche film card archival recording system utilizes an intermediate film strip (71) on a movable film head (2) to transfer an image from an initial imaging station (10) to a transfer station (14) where the image on the intermediate film strip (71) is transferred to the microfiche film card (20). There is provided an optical train including a pair of downwardly facing, inclined and horizontally spaced mirrors (36) (38) at the imaging station (10), the first of which mirror (36) receives upwardly directed light reflected from hard copy. This mirror arrangement, cooperating with a horizontal film head movement in a direction transverse to the mirror spacing, …

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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 January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
  • 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 21, 1982
GrantedJanuary 24, 1984
Term endedJanuary 24, 2001
Patent numberCA 1160878 A
Classification (IPC)G03B27/32 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 21, 1982Patent grantedJan 24, 1984Term endedJan 24, 2001

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