Sheet lifter
CA 2391878 A1 · Owner: Mckeown, Timothy Edward · Inventors: Sgro, Sam; Wilson, Scott Harold; Mckeown, Timothy Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sheet lifter (10) for use with a ring-binder for storing loose-leaf pages having a substantially flat base portion (12) with first and second lateral sides (14, 16). The base portion further includes at least one aperture (18 20) located between the first and second sides for receiving and mounting to the rings of the binder. An end portion is connected to the base portion and is configured to extend beyond the pages stored in the ring-binder when the sheet lifter is engaged by the rings of the binder. The two sides are connected to the end portion and are non-parallel with respect to each other.
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 November 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2022.
- 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.