Tape volume partitioning
CA 2090049 A1 · Owner: Adams, Stephen M. · Inventors: Adams, Stephen M.; Shih, Lionell C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for formatting a length of magnetic tape into a plurality of partition areas to enable data storage in any of these areas and for formatting on the magnetic tape a plurality of spaced system zones, by means of controlling programs of a recording device prompting a host computer system to input the number and spacing of the system zones and the length and number of the partitions to be formatted onto the magnetic tape. The programs also prompts the host computer system to select one of various options for placing a partitions on the magnetic tape. 83121/4
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
- Filed February 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2015.
- 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.