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Canadian application, no grantCanada

Tape transport with multi-gap read/write head for utilization with leader block tape cartridge

CA 2038073 A1 · Owner: Dawson, Terry · Inventors: Mcgee, Jeff; Stead, Charles; Sellke, Richard G.

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

An eight inch form factor tape transport is mechanically compatible with the IBM 3480 leader block tape cartridge and is capable of reading and writing data in the IBM 3480 eighteen track recording format. The tape path eliminated the requirement for an air bearing. A support mechanism permits independent head height adjustment and head azimuth adjustment. The drive electronics are miniaturized on LSI circuits carried on four PC boards contained within the form factor.

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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

  • Filed March 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 12, 1991
GrantedNo grant recorded
Term endedMarch 12, 2011
Patent numberCA 2038073 A1
Classification (IPC)G11B15/67 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 12, 1991Term endedMarch 12, 2011

Sources & verification

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