12/05/1989
RPI 998
Conhecimento de parecer técnico
7.1
Invention PatentPI8503932
Potters Industries, Inc.
The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.
IPC Classification
Priority claims
US
653.943 · 09/21/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
12/05/1989
RPI 998
7.1
05/09/1989
RPI 968
08/19/1986
RPI 826
4.1
05/27/1986
RPI 814
3.1
10/22/1985
RPI 783
2.1
03/27/2018
RPI 2464
15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: E01F 9/04; B29C 43/24.
07/15/2008
RPI 1958
21.1
Patente extinta em 19/08/2000
09/24/1991
RPI 1086
16.1
06/18/1991
RPI 1072
15.11
06/04/1991
RPI 1070
13.1
02/19/1991
RPI 1055
9.1
From the same holder