Patent Yard Sign in
Expired Canadian patentCanada

Plate product of ceramic material and process for the manufacturing thereof

CA 2007667 C · Owner: Toncelli, Luca · Inventors: Toncelli, Marcello

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Plates of ceramic material are prepared starting from stone material, particularly feldspar, quartz porphyry, granites, silica, syenites, nephelines ceramic materials, clays, kaolins, bentonites in granular and/or powder form, mixed, with a small amount of ceramic binder to form a mixture. This mixture is distributed onto a plane delimited from a containing frame and then subjected to the simultaneous action of a vacuum and of a vibratory motion combined with a pressing action. After the moulding step a drying step and, then a firing step are carried out the latter taking place, at the standard temperatures for the manufacturing of ceramic products. The resulting plate has high mechanical …

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 January 12, 1990 and granted October 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 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.
FiledJanuary 12, 1990
GrantedOctober 7, 1997
Term endedJanuary 12, 2010
Patent numberCA 2007667 C
Classification (IPC)C04B33/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJan 12, 1990Patent grantedOct 7, 1997Term endedJan 12, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.