Self-securing box construction
CA 1102762 A · Owner: Eroyan, Gary · Inventors: Eroyan, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-securing box is formed from a blank which is cut scored, folded and secured to define an open ended tube having a top with foldable outer end flaps, a bottom with foldable inner end flaps and sides with foldable end tabs. each of the tabs adjacent the outer end flaps have an acute angular edge portion therein. The respective tabs, inner flaps and outer flaps at opposite ends of the tube are folded successively 90 degrees into engaging registry. The sides of the outer flaps define lock edges which are inclined at an acute angle so as to normally overlap the tab edge portions and are adapted for manual flexing interlocking inward projection so as to retainably engage interior portions …
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
- Granted June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.