Method and apparatus for plastic injection molding/encapsulation
CA 2024924 C · Owner: Myers, Christopher S. · Inventors: Wozniak, Thomas Henry; Myers, Christopher S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A plastic injection molding/encapsulation apparatus for the peripheral encapsulation of a glass workpiece which is equipped with an optical sensing device including a light source, a light detector and, a light reflector to detect possible glass breakage of the workpiece and thus automatically shutting down the plastic injection process to avoid damage to the mold.
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 13, 1990 and granted September 20, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 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.