Bifold mailer with return envelope
CA 2085786 A1 · Owner: Sauerwine, Dean N. · Inventors: Sauerwine, Dean N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mailer type business form and intermediate are constructed from a single quadrate sheet of paper having first through fourth edges and first and second fold lines, which cooperate to divide the sheet into four panels. The first panel has a cutout positioned to overlie an outgoing address printed on the second panel when the sheet is folded about the first fold line. Reply address indicia, including bar coding, is printed on the second face of the second panel. Two strips of transfer tape on the first face of the fourth panel cooperate to allow the second and fourth panels to be formed into a return envelope by the recipient. A return envelope flap with rewettable adhesive strip is formed …
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 December 18, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.