Sheet material dispenser with perforation sensor and method
CA 2372117 A1 · Owner: Broehl, Joshua M. · Inventors: Knittle, John J.; Denen, Dennis J.; Broehl, Joshua M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser for dispensing sheet material including a plurality of spaced perforations may include a housing defining an interior for accommodating a source, of the sheet material, and an outlet through which the sheet material may be dispensed. The device may also include a perforation sensor configured to sense, perforations in the sheet material disposed in the interior of the housing. The, perforation sensor may include at least one light receptor and at least a , portion of, the perforation sensor may be positioned in the housing to contact sheet material, traveling from the source to the outlet thereby spreading perforations in the sheet, material.
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 February 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2024.
- 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.