Paint tray assembly with disposable multi-layered liner
CA 2108525 C · Owner: Gemmell, Wayne R. · Inventors: Gemmell, Wayne R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unique assembly is provided having a supporting base. Mounted on or integrally joined to the base is a supporting tray which carries a unitary strippable liner package formed of several tray shaped and separately disposable liquid-impermeable liners preferably, 3 - 10 mils in thickness, for containing the liquid. The several liners are each easily grasped by the upper liners extending beyond the lower liners. The unitary liner package is held in place by retainer pins and clamped down by an oveerflow dam. The overflow dam has a pressure edge to seal against the liner package a grasping, ledge to lift it off of the liner package and a rough or uneven surface engaging a similar surface on …
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 15, 1993 and granted April 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2015.
- 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.