Digital data storage assembly
CA 2503564 A1 · Owner: Pisipati, Ramesh M. · Inventors: Wittkopf, Eugene W.; Gelardi, Anthony L.; Barbee, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital data storage assembly (2), e.g. a flexible thin film compact disc is described. Digital data storage assembly (2) includes (a) a thin film data , storage carrier (11) having substantially opposed first (14) and second (17) surfaces, a aperture (20) defined in part by a pair of substantially opposed arcuate sides (97, 97') and a pair of substantially opposed substantially straight sides (94, 94'), and at least one tab (23 26) extending partially , into aperture (20). The assembly (2) also includes (b) a rigid support (29) , having substantially opposed first (32) and second (35) surfaces and an , aperture (38). The assembly (2) further includes (c) a locking device (41) , …
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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 October 27, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2025.
- 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.