Multiple head magnetic recording array
CA 1188804 A · Owner: Ferix Corporation · Inventors: Springer, Gilbert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for producing a preselected final image in a travelling magnetic image-storage medium which image is formed, of an arrangement of individual magnetic image units and line segments formed of a plurality of linearly disposed contiguous units having a predetermined center-to-center spacing. Adjacent units in adjacent line segments have substantially the same predetermined center-to-center spacing when viewed in a direction substantially normal to the direction of travel and also have a, known maximum actual center-to-center spacing. Plural magnetic writing heads, each capable of producing an image unit are, distributed to have, when viewed in a direction substantially parallel with …
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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 June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.