Pedido de patente depositado
#2.1
10/25/1988
RPI 940
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Official data from INPI
ELETRODO DE AUTO-COZIMENTO E PROCESSO PARA REFINO DE MINÉRIO
Prazo de SigiloInvention Patent
Application data
Number
PI8802425Type
Invention Patent
Filing
05/18/1988
Publication
01/02/1990
Progress at the INPI
- Filing05/18/88
- Publication01/02/90
- Examination03/03/92
- Allowance06/14/94
- Grant01/31/95
- Expired09/02/08
The letters patent expired on 09/02/2008: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Globe Metallurgical Inc
US
Inventors
E. S. (pessoa física)
US
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 18/05/2003
09/02/2008
RPI 1965
Concessão da patente
#16.1
01/31/1995
RPI 1261
Notificação para pagamento de retribuição
#13.1
10/18/1994
RPI 1246
Deferimento
#9.1
06/14/1994
RPI 1228
Exigência - art. 36 da LPI
#6.1
01/18/1994
RPI 1207
Solicitação de exame técnico
#4.1
03/03/1992
RPI 1109
Publicação do pedido de patente
#3.1
01/02/1990
RPI 1000
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