Official data from INPI

PROCESSO PARA A RECUPERAÇÃO DE ÁCIDO CÍTRICO

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9102301

Type

Invention Patent

Filing

06/04/1991

Publication

01/14/1992

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Progress at the INPI

Filing06/04/91
Publication01/14/92
Examination04/19/94
Allowance05/18/99
Grant11/16/99
Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cargill, Incorporated

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Inventors

A. B. (pessoa física)

D. G. (pessoa física)

Technical data

IPC Classification

C12P 7/48

Priority claims

534,635 · 06/06/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/06/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

11/16/1999

RPI 1506

Deferimento

#9.1

Deferido, com ressalva do artigo 229.

05/18/1999

RPI 1480

Conhecimento de parecer técnico

#7.1

11/03/1998

RPI 1452

Solicitação de exame técnico

#4.1

04/19/1994

RPI 1220

15.5

09/14/1993

RPI 1189

Publicação do pedido de patente

#3.1

01/14/1992

RPI 1102

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