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Expired Canadian patentCanada

Overhead storage unit

CA 2239355 C · Owner: Langworthy, Thomas A. · Inventors: Mrotz, Walter C. Iii; Langworthy, Thomas A.; Noel, David P.

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

An overhead storage unit for a modular open office system is provided. The storage unit can be either a freestanding unit or a panel mounted unit. The present invention provides easy to assemble units utilizing a minimum of different components for inexpensive manufacturing and ease of construction. In the freestanding unit identical end panels are used; whereas in the panel mounted unit complementary right and left end panels are formed. In either unit the shelves and doors are of identical shape. When assembled, engagement tabs on the panel mounted unit prevent the storage unit from being inadvertently removed.

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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

  • Filed June 1, 1998 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 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.
FiledJune 1, 1998
GrantedNovember 18, 2003
Term endedJune 1, 2018
Patent numberCA 2239355 C
Classification (IPC)A47B63/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 1, 1998Patent grantedNov 18, 2003Term endedJune 1, 2018

Sources & verification

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