Publicação do pedido de patente
#3.1
11/14/1989
RPI 995
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Official data from INPI
PROCESSO PARA PREPARAR UM NAFTALATO DE POLIETILENO MODIFICADO.
PublicadaInvention Patent
Application data
Number
PI8901481Type
Invention Patent
Filing
03/30/1989
Publication
11/14/1989
Progress at the INPI
- Filing03/30/89
- Publication11/14/89
- Examination12/17/91
- Allowance04/14/98
- Grant02/23/99
- Expired12/18/12
The letters patent expired on 12/18/2012: 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
Shell Internationale Research Maatschappij B.V.
NL
The Goodyear Tire & Rubber Company
US
Inventors
M. F. (pessoa física)
US
W. T. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
05/16/1989
RPI 969
Carta-patente expirada
#21.1
Patente extinta em 30/03/2009
12/18/2012
RPI 2189
Concessão da patente
#16.1
02/23/1999
RPI 1468
Deferimento (variante)
#9.1.2
Ref. a RPI 1425 de 14/04/98.
02/17/1999
RPI 1467
Deferimento
#9.1
DEFERIDO DE ACORDO COM A LEI 9279 DE 14/05/96
04/14/1998
RPI 1425
Deferimento
#9.1
Deferido de acordo com a lei 9279 de 14/05/96.
03/24/1998
RPI 1422
Exigência - art. 36 da LPI
#6.1
06/20/1995
RPI 1281
14.1
08/17/1993
RPI 1185
Solicitação de exame técnico
#4.1
12/17/1991
RPI 1098
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