System and method for proofing pre-packaged doughs
CA 2106502 C · Owner: The Pillsbury Company · Inventors: Chatraei, Sholeh; Cooley, Timothy R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to means for rapidly and uniformly heating and cooling packages of dough which are packed into cases. The cases have orifices in the top and bottom walls which are sized and positioned to permit air to flow through the cases having regard to the dimensions of the dough packages. The orifices in the top wall are aligned with the orifices in the bottom wall and interstices between the dough packages to permit heating or cooling air to flow relatively unobstructed through the cases.
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 September 20, 1993 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 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.