Patent Yard Sign in
Expired Canadian patentCanada

Magnetic tape recording and/or reproducing apparatus

CA 1094218 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Akamine, Takenori; Shimizu, Ryota; Kozu, Isao

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A magnetic tape recording and/or reproducing apparatus has a cam driven mechanism for moving a pressure roller from a first position within a cutout recess of a tape cassette and behind the inner side of a magnetic tape to a second position slightly spaced from a tape drive capstan. According to said movement of the pressure roller, a tape drawing pin is moved from an inoperative position within the cutout recess and behind the inner side of the magnetic tape to an operative position where the tape is drawn out of the cassette and brought into a desired tape path so as to be engaged with a magnetic head which is stationarily mounted on a base plate of the apparatus. The pressure roller is …

Read the whole patent

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 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 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.
FiledAugust 15, 1977
GrantedJanuary 20, 1981
Term endedJanuary 20, 1998
Patent numberCA 1094218 A
Classification (IPC)G11B15/66 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedAug 15, 1977Patent grantedJan 20, 1981Term endedJan 20, 1998

Sources & verification

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