Reversible cartridge for flexible disks
CA 1159952 A · Owner: International Business Machines Corporation · Inventors: Wenner, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cartridge containing a flexible magnetic recording disk provides for simultaneous transducer access to both sides of the disk. The cartridge is formed of symmetrical halves which allow use of the cartridge in either of two positions. Symmetrical shutter mechanisms in both sides of the cartridge are opened by insertion of the cartridge into a drive to expose transducer openings and disk drive openings.
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 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 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.
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.