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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ESTABILIZADORES DE POLÍMERO COPULADOS COM DIANIDRIDO

Em AnáliseInvention Patent

Application data

Number

PI8804854

Type

Invention Patent

Filing

09/20/1988

Publication

04/25/1989

Progress at the INPI

  1. Filing09/20/88
  2. Publication04/25/89
  3. Examination11/21/89
  4. Allowance
  5. Grant
  6. In force

Published on 04/25/1989, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

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Inventors

A. B. (pessoa física)

US

J. W. (pessoa física)

US

T. M. (pessoa física)

US

Technical data

Priority claims

US

099,192 · 09/21/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/21/1989

RPI 996

Publicação do pedido de patente

#3.1

04/25/1989

RPI 966

Pedido de patente depositado

#2.1

02/08/1989

RPI 955

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08K 5/16; C07D 249/08; C07C 135/00; C07D 235/04; C07C 119/06; C07D 283/00.

03/27/2018

RPI 2464

Retificação

#15.3

06/16/1992

RPI 1124

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