Roller having slip-on cage for paint roller cover
CA 2235974 C · Owner: Newell Operating Company · Inventors: Barton, William W.; Gilbert, Anthony W.; Polzin, Bruce C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cage for a roller cover includes a plurality of hubs a longitudinal support member interconnecting a plurality of hubs and a roller cover support surface integrally formed with the hubs and the support member. The roller cover support surface is resiliently biased outwardly beyond at least one of the hubs for resiliently engaging the roller cover.
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 April 28, 1998 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2020.
- 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.