Laser edgemarking equipment
CA 2070189 A1 · Owner: Van Kerkhove, Alan P. · Inventors: Adams, John E.; Shaffer, Wayne K.; Heath, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Edgemark equipment 10 for focusing indicia on the lengthwise edge of a continuously moving web 12 comprises a laser printer 14 mounted to a moveable base 16. The printer 14 ablates (etches) the target web 12 with a series of directional beams. An edge detector 28 senses the edge of web 12 during operations and ensures accurate positioning of the printer 14 on the web 12 by signalling a linear actuator 30 to adjust the printer 14 when necessary. A central operating system 32 comprising a pressure sensitive screen 34 is provided for enabling all edgemarking equipment 10 functions at operator command.
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 June 2, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 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.