Box with reinforced hand hole
CA 2047520 A1 · Owner: Bishop, Richard Edwin · Inventors: Fischer, David; Bishop, Richard Edwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
File No. 4897-010, ABSTRACT OF THE DISCLOSURE In accordance with this invention there is provided a blank from which a box may be made by folding the blank. The blank has a plurality of wall panels at, least one of the wall panels defines an aperture to comprise a carrying handle. A top flap extends from that wall panel and is affixed to the panel for folding about a first fold line. The top flap comprises a reinforcing portion which is defined by a second fold line and a cut perimeter. The reinforcing portion further comprises a third fold line. The fold lines are located so that upon folding the reinforcing portion about the second fold line, the third fold line is brought into register …
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 July 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2013.
- 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.