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Expired Canadian patentCanada

Disposable film plastic paint tray liners

CA 1192852 A · Owner: Vallier, Lawrence W. · Inventors: Bonisteel, Raymond W.; Vallier, Lawrence W.; Vallier, Mary T.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is a definite need for a functional but inexpensive disposable paint tray liner today to cheaply avoid the timeconsuming and messy task of cleaning out a paint tray. Our disposable film plastic paint tray liner fills this need. Presently the only disposable paint tray liner on the market is made of rigid plastic and shaped in the form of an actual paint tray. The rigid plastic liner resembles a paint tray within a paint tray when in use and retails for approximately fifty cents This is relatively expensive in comparison to our disposable liner. Our film plastic paint tray liner, in contrast, is not as bulky as the paint tray in which it is used and can be produced and retailed for a …

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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

  • Granted September 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 21, 1984
GrantedSeptember 3, 1985
Term endedSeptember 3, 2002
Patent numberCA 1192852 A
Classification (IPC)B65D25/16 +2 more

Timeline

Timeline From CIPO dates

198519871989199119931995199719992001Application filedSep 21, 1984Patent grantedSep 3, 1985Term endedSep 3, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.