Solicitação de exame técnico
#4.1
10/25/1988
RPI 940
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Official data from INPI
PROCESSO DE POLIMERIZAÇÃO DO CLOROPRENO
Em AnáliseInvention Patent
Application data
Number
PI8501426Type
Invention Patent
Filing
03/28/1985
Publication
11/04/1986
Progress at the INPI
- Filing03/28/85
- Publication11/04/86
- Examination10/25/88
- Allowance01/08/91
- Grant08/27/91
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Distugil
FR
Inventors
F. S. (pessoa física)
FR
P. B. (pessoa física)
FR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
11/04/1986
RPI 837
Pedido de patente depositado
#2.1
06/18/1985
RPI 765
Carta-patente expirada
#21.1
Patente extinta em 28/03/2000
07/15/2008
RPI 1958
Pedido de licença compulsória
#20.1
07/04/1995
RPI 1283
Concessão da patente
#16.1
08/27/1991
RPI 1082
Notificação para pagamento de retribuição
#13.1
04/23/1991
RPI 1064
Deferimento
#9.1
01/08/1991
RPI 1049
Exigência - art. 36 da LPI
#6.1
07/31/1990
RPI 1026
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