Composite laminate adhesive tape coiled in an endless roll form and process for forming the laminate adhesive tape roll
CA 2052188 C · Owner: Tuschy, Jorg O. P. · Inventors: Pape, Peter H. K.; Tuschy, Jorg O. P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Composite laminated adhesive tape coiled endlessly in roll form, comprising a central tape (2) and first and third fastening tapes (1 and 3) each disposed at respective ends thereof, with the surface of said fastening tapes being provided at least, partly, with pressure-sensitive adhesive (4 and 10) wherein in cross section the composite laminated adhesive tape coiled endlessly in roll form is folded in Z-form, with the top, slanted and bottom bars of the Z-shape being formed by separate first second and, third tape sections of first fastening tape second, central tape and third fastening tape respectively. WJBAPP4/46817CAN.APP
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 September 25, 1991 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2013.
- 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.