Infant guidance pacifier appliance
CA 2009620 C · Owner: Bergersen, Earl O. · Inventors: Bergersen, Earl O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An orthodontic appliance is provided to prevent overbite or overjet from developing in a child. The appliance is U-shaped in plan view and has tooth receiving troughs for the upper and lower teeth to correctly position the jaws antero-posteriorly. Uses of the appliance preferably should begin when the child is in the age range of 12 to 18 months before, all of the deciduous teeth have erupted so that improper development of the jaw can be avoided. The appliance has a non-working portion being a shield and handle portion to cause the appliance to have the appearance of a pacifier as well as to prevent the child from gagging on the appliance and to assist in the proper positioning of the …
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 August 16, 1994. 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.