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Official data from INPI

PROCESSO PARA PRODUÇÃO DE MINA DE GRAFITE OU CORES PARA LAPISEIRA OU LÁPIS E PRODUTO ASSIM OBTIDO

Prazo de SigiloInvention Patent

Application data

Number

PI8806731

Type

Invention Patent

Filing

12/20/1988

Publication

07/31/1990

Progress at the INPI

  1. Filing12/20/88
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 12/20/1988. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. R. (pessoa física)

SP, BR

W. N. (pessoa física)

SP, BR

Inventors

O. R. (pessoa física)

BR

W. N. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Retificação

#15.3

07/26/1994

RPI 1234

Pedido de certificado de adição de invenção

#5.1

05/07/1991

RPI 1066

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

Publicação do pedido de patente

#3.1

07/31/1990

RPI 1026

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