Publicação do pedido de patente
#3.1
11/14/1989
RPI 995
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Official data from INPI
PROCESSO PARA PREPARAR UMA COMPOSIÇÃO DE ADITIVO LUBRIFICANTE, COMPOSIÇÃO DE ÓLEO LUBRIFICANTE E CONCENTRADO PARA ÓLEO LUBRIFICANTE
PublicadaInvention Patent
Application data
Number
PI8901410Type
Invention Patent
Filing
03/27/1989
Publication
11/14/1989
Progress at the INPI
- Filing03/27/89
- Publication11/14/89
- Examination07/23/91
- Allowance04/30/96
- Grant04/29/97
- Expired12/15/09
The letters patent expired on 12/15/2009: 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: 11/14/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
E. C. (pessoa física)
US
T. C. (pessoa física)
US
Inventors
T. N. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
05/09/1989
RPI 968
Carta-patente expirada
#21.1
Patente extinta em 27/03/2004
12/15/2009
RPI 2032
Transferência deferida
#25.1
Transferido de: Texaco Development Corporation.
08/17/1999
RPI 1493
Concessão da patente
#16.1
04/29/1997
RPI 1378
Deferimento
#9.1
04/30/1996
RPI 1326
Exigência - art. 36 da LPI
#6.1
06/27/1995
RPI 1282
Solicitação de exame técnico
#4.1
07/23/1991
RPI 1077
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