Apparatus for holding square articles
CA 2099292 C · Owner: Summers, Charles E. · Inventors: Summers, Charles E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for engaging and holding a non-oriented hot glass container of predetermined square cross sectional contour and closed end that includes a chuck having an open end for receiving the container and an internal valve plate for abutment with the end of the container received in the chuck. The chuck is coupled to a cam-operated arm for lowering the chuck over a container. A transition plate has a square opening contoured to be closely received over the square cross section of the container, and is mounted for free rotation adjacent to the open end of the chuck. Guide fingers project from the plate away from the open end of the chuck so as to engage the container end as the chuck is …
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 June 28, 1993 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 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.