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Official data from INPI

PROCESSO PARA PURIFICAR, E PROCESSO PARA PREPARAR ÁCIDO N-BENZILOXICARBONIL ASPÁRTICO

Em AnáliseInvention Patent

Application data

Number

PI8204540

Type

Invention Patent

Filing

08/03/1982

Publication

07/26/1983

Progress at the INPI

  1. Filing08/03/82
  2. Publication07/26/83
  3. Examination09/17/85
  4. Allowance
  5. Grant
  6. In force

Published on 07/26/1983, 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: 10/20/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC [US]

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Inventors

A. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

291.548 · 08/10/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

10/20/1987

RPI 887

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

Publicação do pedido de patente

#3.1

07/26/1983

RPI 666

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 101/20; C07C 99/12; C07C 103/50.

03/27/2018

RPI 2464

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