Two way envelope
CA 1266254 C · Owner: Paquin, Jean · Inventors: Paquin, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two-way envelope especially designed for use by Public Utilities, credit companies, mail order retailers and similar companies which have to send statements bills, advertising brochures and/or offers and want to receive back payments or orders from their clients or consommers by return of mail. The envelope is made of one piece and comprises a flat pocket for receiving at least one document to be mailed or mailed back, and a flap integrally extending the upper edge of the top surface of this pocket. This flap comprises a first portion identical in size to the bottom surface of the pocket, and a second portion smaller in size than the top surface of the pocket. A first folding line is …
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 February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 2007.
- 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.