Envelope assembly
CA 1296682 C · Owner: Haase, Roger L. · Inventors: Haase, Roger L.; Fitzgibbons, Gary W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An envelope assembly including first and second plies 10, 70 respectively defining a front and back of an envelope along with an intermediate insert ply 40 having a message section 50 and an attachment section 52 with the message section 50 being connected by a small frangible tie 56 to the attaching section 52. A U-shaped glue line 84 secures the first and second plies 10, 70 together and one of the plies 10, 70 is provided with a tab 22 firmly secured to the attaching section 52. The ties 56 provide registration during manufacture and subsequent printing and yet are easily ruptured when the tab 22 is stripped from the form taking the attachment section 52 with it to thereby free the …
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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 March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.