Roll sign module unit
CA 2274427 A1 · Owner: Harruff, Robert J. · Inventors: Harruff, Robert J.; Gross, Philip R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
First and second rolls arranged with their axes parallel to each other and spaced from each other between said side frame members for being driven rotationally to wind an information bearing web on one roll while the web is unwinding from the other roll. The rolls are journaled for rotation at their opposite ends on stub axles that project in cantilever fashion from opposite side members of the frame. Each roll has a gear fastened to a corresponding end coaxially with the roll. A drive shaft extends transversely to the axes cog both rolls. A first pinion is positioned on the drive shaft for meshing with the gear on the first roll and is free to turn on the drive shaft. A second pinion is …
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 May 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2021.
- 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.