Shelf formed of a miter cut piece of plastic
CA 2062086 A1 · Owner: Transilwrap Company, Inc. · Inventors: Drower, Herbert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An article adapted to be erected to form a shelf which may be attached to a wall or other vertical support. A generally planar sheet of plastic of generally uniform density is divided by longitudinally-spaced laterally-, extending hinge elements into rectangular sections. The hinge elements are created by miter cuts in the sheet of plastic which do not extend the full thickness of the sheet thereby providing a thin hinge of plastic which functions as the hinge. The rectangular sections are foldable about the hinge elements into a hollow tube which functions as a wall attachment member. At least one of the rectangular sections functions as a shelf member which is supported at one end by 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 February 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2014.
- 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.