Concessão da patente
#16.1
07/25/1989
RPI 979
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Application data
Number
PI8305618Type
Invention Patent
Filing
10/11/1983
Publication
05/22/1984
Progress at the INPI
- Filing10/11/83
- Publication05/22/84
- Examination07/29/86
- Allowance09/13/88
- Grant07/25/89
- 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Societe Nationale Elf Aquitane (Production)
FR
Inventors
E. B. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
01/03/1989
RPI 950
Deferimento
#9.1
09/13/1988
RPI 934
Exigência - art. 36 da LPI
#6.1
04/12/1988
RPI 912
6.2
03/04/1987
RPI 854
Solicitação de exame técnico
#4.1
07/29/1986
RPI 823
Publicação do pedido de patente
#3.1
05/22/1984
RPI 709
Pedido de patente depositado
#2.1
12/27/1983
RPI 688
Carta-patente expirada
#21.1
Patente extinta em 11/10/98
07/01/2008
RPI 1956
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