Carta-patente expirada
#21.1
Patente extinta em 14/08/2010
01/29/2013
RPI 2195
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Official data from INPI
ÓLEO ESPESSADO, NÃO POLIMÉRICO, PARA MOTOR
Arquivada/ExtintaInvention Patent
Application data
Number
PI9004020Type
Invention Patent
Filing
08/14/1990
Publication
09/03/1991
Progress at the INPI
- Filing08/14/90
- Publication09/03/91
- Examination11/16/93
- Allowance06/16/98
- Grant11/24/98
- Expired01/29/13
The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
E. C. (pessoa física)
US
Q. C. (pessoa física)
US
Inventors
B. B. (pessoa física)
US
J. D. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
11/24/1998
RPI 1455
Deferimento
#9.1
06/16/1998
RPI 1434
Exigência - art. 36 da LPI
#6.1
03/25/1997
RPI 1373
Solicitação de exame técnico
#4.1
11/16/1993
RPI 1198
14.1
12/17/1991
RPI 1098
Publicação do pedido de patente
#3.1
09/03/1991
RPI 1083
Pedido de patente depositado
#2.1
02/19/1991
RPI 1055
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