Solicitação de exame técnico
#4.1
10/20/1987
RPI 887
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Official data from INPI
PROCESSO PARA SECAGEM ABSOLUTA DE ÓLEOS ISOLANTES E O CORRESPONDENTE EQUIPAMENTO
Em AnáliseInvention Patent
Application data
Number
PI8505650Type
Invention Patent
Filing
11/11/1985
Publication
06/09/1987
Progress at the INPI
- Filing11/11/85
- Publication06/09/87
- Examination10/20/87
- Allowance06/25/91
- Grant04/28/92
- 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: 10/20/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Eniplan Indústria e Planejamento Ltda
SP, BR
Inventors
A. C. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
06/09/1987
RPI 868
Pedido de patente depositado
#2.1
01/21/1986
RPI 796
Carta-patente expirada
#21.1
Patente extinta em 11/11/2000
07/15/2008
RPI 1958
Concessão da patente
#16.1
04/28/1992
RPI 1117
Notificação para pagamento de retribuição
#13.1
10/22/1991
RPI 1090
Deferimento
#9.1
06/25/1991
RPI 1073
Exigência - art. 36 da LPI
#6.1
02/05/1991
RPI 1053
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