Publicação do pedido de patente
#3.1
03/01/1988
RPI 906
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Official data from INPI
PROCESSO E DISPOSITIVO PARA A PRODUÇÃO DE UMA MASSA CERÂMICA FINA DE GRANDE HOMOGENEIDADE E ALTO GRAU DE FINURA
PublicadaInvention Patent
Application data
Number
PI8702869Type
Invention Patent
Filing
06/05/1987
Publication
03/01/1988
Progress at the INPI
- Filing06/05/87
- Publication03/01/88
- Examination04/10/90
- Allowance12/14/93
- Grant06/28/94
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 03/01/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Porzellanfabrik Schirnding AG
DE
Inventors
D. S. (pessoa física)
DE
D. K. (pessoa física)
DE
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
08/11/1987
RPI 877
Carta-patente expirada
#21.1
Patente extinta em 05/06/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
06/28/1994
RPI 1230
Deferimento
#9.1
12/14/1993
RPI 1202
Solicitação de exame técnico
#4.1
04/10/1990
RPI 1013
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