Boxes
CA 2048371 A1 · Owner: Singer, Alec · Inventors: Singer, Alec; Singer, Alec
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A box is disclosed which comprises three blanks. The blank comprises a rectangular base panel four wall, panels which are joined along crease lines to the panel and four end flaps joined along crease lines to the wall panels. The second and third blanks each comprise a wall panel and two end flaps joined to one another along crease lines. The wall panels are configured to provide a centre section and two end sections with steps between them. The wall panels of the blanks are adhered to the outer faces of wall panels of the blank and the flaps are adhered to the outer faces of the end portions of the wall panels. Re-activatable adhesive is used. The adhesive can be heat, solvent of water …
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 August 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 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.