Solicitação de exame técnico
#4.1
12/20/1988
RPI 948
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Official data from INPI
MISTURA ELASTOMÉRICA TERMOPLÁSTICA POSSUINDO UMA TEMPERATURA DE PROCESSAMENTO NA FUSÃO REDUZIDA
Em AnáliseInvention Patent
Application data
Number
PI8700781Type
Invention Patent
Filing
02/19/1987
Publication
12/22/1987
Progress at the INPI
- Filing02/19/87
- Publication12/22/87
- Examination12/20/88
- Allowance07/07/92
- Grant04/27/93
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Advanced Polymer Compounding Limited Partnership
US
E.I. Du Pont de Nemours and Company
US
Inventors
J. H. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
002.553 · 01/21/1987
US
831.688 · 02/21/1986
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
12/22/1987
RPI 896
Pedido de patente depositado
#2.1
06/09/1987
RPI 868
Carta-patente expirada
#21.1
Patente extinta em 19/02/2002
07/29/2008
RPI 1960
Transferência deferida
#25.1
Transferido de: E.I. Du Pont De Nemours and Company
11/17/1998
RPI 1454
Concessão da patente
#16.1
04/27/1993
RPI 1169
Notificação para pagamento de retribuição
#13.1
11/24/1992
RPI 1147
Deferimento
#9.1
07/07/1992
RPI 1127
Exigência - art. 36 da LPI
#6.1
11/05/1991
RPI 1092
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