Web handling method and apparatus
CA 2051844 A1 · Owner: Mckenna, Thomas G. · Inventors: Mckenna, Thomas G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Docket M-526, Abstract of the Disclosure There is disclosed a web handling apparatus including a printer for printing on longitudinally extending multi-portion webs, with the web including a plurality of longitudinally extending web portions and connected at a longitudinal line of weakening between each adjacent pair of web portions each web, portion including record members guide structure for causing, adjacent web portions to move along different paths or planes to effect tearing and resultant separation of the web portions at each line of weakening, and a rewinder for drawing on the separated web portions and winding them into separate rolls.
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 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.