Indexing system
CA 2286527 A1 · Owner: Rand, Austin · Inventors: Erisalu, Enn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An index system using single axis or multiple axes with single and multiple leaves turning, around this axis (axes). All leaves or groups of leaves present an exposed marginal portion, obtained by relative extension of leaves and/or partial removal of a portion of the marginal, portion (s), which provides an overview of the content which is indexed in , groups and , sub-groups. Use is made of brief descriptions capital letters, numbers, arrows and distinctive background color for facilitating the use of the index system.
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 October 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2021.
- 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.