Envelope assembly
CA 1052743 A · Owner: Moore Corporation Limited · Inventors: Van Malderghem, Edmund G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An envelope assembly of a succession of envelopes each includes a front and back panel and extractable insert material contained therein the, insert material comprising a top-opening return mailer envelope connected to a portion of the envelope by means of a panel forming a portion or chip of the return envelope which is separable therefrom and which is retained with, the envelope upon extraction of the insert. As an alternative the chip of, the return envelope is connected to an insert sheet within each envelope.
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 April 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 1996.
- 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.