Longitudinally interfolding device
CA 1070724 A · Owner: Paper Converting Machine Company · Inventors: Shirasaka, Fumitake
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
LONGITUDINALLY INTERFOLDING DEVICE AND METHOD ABSTRACT OF THE DISCLOSURE:, A longitudinally interfolding device and method for simultaneously interfolding a pair of partially superposed webs wherein the free margins of the webs are simultaneously over and under folded.
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 January 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 1997.
- 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.