Variable feed rate nipple
CA 2025669 C · Owner: Boiteau, Claude · Inventors: Leblanc, Jean-Francois; Boiteau, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The variable feed rate nipple (1) of the invention adapted to a feeding bottle and comprising at the end of its teat (2) a slot (3) having two branches (3a 3b) forming between each other an angle is characterized in that the angle formed by the two branches of the slots (3) is an obtuse angle GAMMA comprised between 165 and 95 of which the summit is on the axis of the nipple in that the branches of the slot have lengthes l1 and l2 (with l1 > l2) such that the ratio l1/l2 is comprised between 1 and delta the value of delta growing from 1 to 10 preferably from 1 to 4.5 when the value of the angle GAMMA decreases from 165 to 95 said branches of the slot (3) being formed by cutting lines …
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 8, 1990 and granted April 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2012.
- 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.