Method and apparatus for registering processing heads
CA 2305541 A1 · Owner: Ruthenberg, Meyer L. · Inventors: Larkin, Barry E.; Ruthenberg, Meyer L.; Silate, Douglas H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paperboard blank processing apparatus including a rotatably mounted processing head (36) for operating upon successive paperboard blanks is disclosed. A paperboard blank registration sensor (50) is provided upstream from the processing head for detecting a preprinted registration mark (108) on a surface of an approaching paperboard blank (100). A controller is responsive to the registration sensor for determining whether the approaching paperboard blank is in proper registration with the rotary processing head (36). A registration correction window is defined by the controller and includes upper and lower limits defining upper and lower maximum correction values for bringing the …
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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 October 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2020.
- 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.