03/29/1988
RPI 910
Solicitação de exame técnico
4.1
Invention PatentPI8503052
Isoworth Limited
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: 03/29/1988. We update with every new RPI gazette, published weekly.
Publications in the Brazilian Industrial Property Gazette (RPI).
03/29/1988
RPI 910
4.1
03/11/1986
RPI 803
3.1
09/10/1985
RPI 777
2.1
03/20/2018
RPI 2463
15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: A23L 2/26; B01F 3/04.
07/15/2008
RPI 1958
21.1
Patente extinta em 25/06/2000
06/11/1991
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15.11
11/27/1990
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16.1
08/21/1990
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13.1
05/01/1990
RPI 1016
9.1