Official data from INPI

PROCESSO DE FASE LÍQUIDA PARA PREPARAÇÃO DE UM ÁCIDO CARBOXÍLICO

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9000925

Type

Invention Patent

Filing

02/23/1990

Publication

02/19/1991

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Progress at the INPI

Filing02/23/90
Publication02/19/91
Examination05/04/93
Allowance08/26/97
Grant08/25/98
Expired01/08/13

The letters patent expired on 01/08/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The British Petroleum Company, P.L.C.

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

C07C 51/12

Priority claims

8904125.5 · 02/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/02/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

08/26/1997

RPI 1395

Exigência - art. 36 da LPI

#6.1

10/01/1996

RPI 1348

Solicitação de exame técnico

#4.1

05/04/1993

RPI 1170

Publicação do pedido de patente

#3.1

02/19/1991

RPI 1055

Pedido de patente depositado

#2.1

06/26/1990

RPI 1024

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