Official data from INPI

PROCESSO PARA A SÍNTESE DO 2-HIDROXI-3,5,6-TRICLOROPIRIDINA

PublicadaInvention Patent

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Application data

Number

PI8703983

Type

Invention Patent

Filing

08/05/1987

Publication

02/14/1989

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Progress at the INPI

Filing08/05/87
Publication02/14/89
Examination08/13/91
Allowance10/26/93
Grant05/31/94
Expired07/29/08

The letters patent expired on 07/29/2008: 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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Química Estrella S/A

Inventors

A. C. (pessoa física)

E. M. (pessoa física)

Technical data

IPC Classification

C07D 213/64

Priority claims

307,790 · 06/05/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Carta-patente expirada

#21.1

Patente extinta em 05/08/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

14.1

05/07/1991

RPI 1066

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