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Official data from INPI

PRODUTOS ORGANO-FOSFORADOS - FOSFONATOS NITROGENADOS, PROCESSO DE PREPARAÇÃO EM REATORES DE AÇO INOXIDÁVEL

Em AnáliseInvention Patent

Application data

Number

PI8701620

Type

Invention Patent

Filing

04/07/1987

Publication

08/18/1987

Progress at the INPI

Under appeal
  1. Filing04/07/87
  2. Publication08/18/87
  3. Examination09/22/87
  4. Refused04/11/95
  5. Grant
  6. In force

The application was refused by the INPI on 04/11/1995. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 09/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Grace Aquatec Química Ltda

SP, BR

W.R. Grace & Co. - Conn

SP, BR

Inventors

A. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/22/1987

RPI 883

Publicação antecipada

#3.2

08/18/1987

RPI 878

Pedido de patente depositado

#2.1

07/14/1987

RPI 873

Indeferimento

#9.2

04/11/1995

RPI 1271

14.1

07/06/1993

RPI 1179

14.1

06/29/1993

RPI 1178

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