Conhecimento de parecer técnico
#7.1
07/19/1988
RPI 926
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Official data from INPI
PROCESSO DE PREPARAÇÃO DE POLÍMEROS ELASTOMÉRICOS
Em AnáliseInvention Patent
Application data
Number
PI8207432Type
Invention Patent
Filing
12/22/1982
Publication
10/18/1983
Progress at the INPI
- Filing12/22/82
- Publication10/18/83
- Examination11/05/85
- Allowance11/27/90
- Grant05/28/91
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 07/19/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
W. C. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de certificado de adição de invenção
#5.1
02/04/1986
RPI 798
Solicitação de exame técnico
#4.1
11/05/1985
RPI 785
Publicação do pedido de patente
#3.1
10/18/1983
RPI 678
Pedido de patente depositado
#2.1
02/16/1983
RPI 643
Carta-patente expirada
#21.1
Patente extinta em 22/12/97
07/01/2008
RPI 1956
Concessão da patente
#16.1
05/28/1991
RPI 1069
Notificação para pagamento de retribuição
#13.1
03/12/1991
RPI 1058
Deferimento
#9.1
11/27/1990
RPI 1043
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