Green chewing gum base
CA 2092275 C · Owner: Sijtsema, Petrus Joannes J.M. · Inventors: Burger, Jacob Cornelis; Sijtsema, Petrus Joannes J.M.; Lakeman, Jan Dirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Greener chewing gum base or bubble gum base (i.e. better biologically degradable and healthier) is obtained by replacing the paraffin component of a conventional chewing gum base by a triglyceride composition with an N35 ~ 40 a, (C16 + C18) saturated fatty acid content of 40-100 wt% a, C18:1-content of 0-60 wt% a (C12 + C14 + C16) saturated fatty acid content of at least 30 wt% and a (C12 + C14) saturated fatty acid content of 0-40 wt%.
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 23, 1993 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2015.
- 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.