Horizontal press bending
CA 1306358 C · Owner: Frank, Robert G. · Inventors: Frank, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A horizontal press bending arrangement wherein heat softened glass sheets are shaped between a lower mold with a sheet shaping surface having a generally convex upward elevational configuration and an upper vacuum mold. After shaping, the shaped glass sheet is deposited on an adjustable tempering ring. The ring adjusts in size from a first configuration corresponding to the contours of the shaped sheet immediately after shaping, to a second configuration corresponding to the contours of the shaped sheet after it has been cooled.
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
- Granted August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
- 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.