Carrier strip for perforated label sheet
CA 2037644 A1 · Owner: Kunreuther, Steven · Inventors: Kunreuther, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The sheet material includes a section designed to form a plurality of labels as it is separated along orthogonal perforation lines. That section is situated between carrier strips each of which includes a series of aligned spaced sprocket holes. In order to prevent the tearing of the carrier strips as they are removed from the label section by automated equipment, the position of the sprocket holes relative to the perforation line which defines the boundary between the carrier strip and the label section is increased such that the distance between the line and the closest portion of the sprocket holes is at least 2 and preferably 2 1/2 times the diameter of the sprocket holes.
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 March 6, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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.