Fragrance sampler with protective treatment
CA 2116342 C · Owner: Charbonneau, Jack W. · Inventors: Charbonneau, Jack W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sampler for delivery of microencapsulated liquid material has a protective treatment disposed on the substrate sheet overlying ink on the sheet, with microcapsules comprising microencapsulated organic liquid capsule fill disposed on at least a portion of the protective treatment and overlying at least a portion of the ink. The protective treatment is water-stable and organic liquid capsule fill-stable, and is a polymeric solution or emulsion that may be coated on the substrate sheet in a standard coating process in line with the printing of ink on the substrate sheet and will cure , in line to provide the desired protective properties.
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 August 27, 1992 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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.