Publicação do pedido de patente
#3.1
05/30/1989
RPI 971
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE UM POLIDIENO QUE TEM UM ALTO NÍVEL DE AFINIDADE COM O NEGRO DE FUMO
PublicadaInvention Patent
Application data
Number
PI8805276Type
Invention Patent
Filing
10/13/1988
Publication
05/30/1989
Progress at the INPI
- Filing10/13/88
- Publication05/30/89
- Examination07/30/91
- Allowance03/19/96
- Grant12/31/96
- 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
A. H. (pessoa física)
US
B. M. (pessoa física)
US
S. R. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
02/21/1989
RPI 957
Carta-patente expirada
#21.1
Patente extinta em 13/10/2003
09/02/2008
RPI 1965
Concessão da patente
#16.1
12/31/1996
RPI 1361
Deferimento
#9.1
03/19/1996
RPI 1320
Exigência - art. 36 da LPI
#6.1
05/23/1995
RPI 1277
Solicitação de exame técnico
#4.1
07/30/1991
RPI 1078
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