Official data from INPI

PROCESSO PARA PREPARAR UM COMPOSTO HIDROXIAMIDA

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9103632

Type

Invention Patent

Filing

08/23/1991

Publication

05/19/1992

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Progress at the INPI

Filing08/23/91
Publication05/19/92
Examination07/05/94
Allowance11/03/98
Grant08/10/99
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

Rohm And Haas Company

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Inventors

F. S. (pessoa física)

Technical data

IPC Classification

C07C 231/02 C07C 231/24 C07C 235/08 C07C 235/16 C07C 235/88

Priority claims

573,524 · 08/27/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 23/08/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

08/10/1999

RPI 1492

Deferimento

#9.1

11/03/1998

RPI 1452

Solicitação de exame técnico

#4.1

07/05/1994

RPI 1231

Publicação do pedido de patente

#3.1

05/19/1992

RPI 1120

Pedido de patente depositado

#2.1

10/01/1991

RPI 1087

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