Coil protector
CA 2291899 A1 · Owner: O'Sullivan, Brian Jonathan · Inventors: O'Sullivan, Brian Jonathan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shield is provided for the protection of the inner convolutions of a coil of sheet material, the coil having a central opening adapted to be engaged by a lifting, device such as a probe inserted into the opening and then raised. The shield has a, first section for insertion into an end of the central opening of the coil the first, section being part-cylindrical and shaped to span a substantial part of the periphery, of the central opening. The shield further has a second section attached to the first, section and extending outward to an outer edge so that the second section , abuts the end of a coil into which the first section has been inserted. At either peripheral end, of the …
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 December 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.