C and z reply envelope
CA 2085797 A1 · Owner: File, Jerry E. · Inventors: File, Jerry E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A business form comprises a mailer formed from a single roughly 8 1/2 x 11 inch sheet, with a reply envelope nestable within the mailer, yet large enough to comply with minimum size postal regulations for mailable first class documents. The mailer sheet is C or Z folded into three sections of approximately equal size with perforations defining marginal portions and main panels. The return envelope has a first portion having a length approximately twice that of a second portion, and a free end. The first and second portions are connected together to define an envelope pocket having a length approximately equal to that of the second portion, including a common first edge opposite from the …
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.