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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE PIGMENTO DE CAULIM, PIGMENTO DE ALTA DIFUSÃO DE LUZ, PIGMENTO DE CAULIM POROSO AGREGADO E PROCESSO PARA SUA PRODUÇÃO.

PublicadaInvention Patent

Application data

Number

PI8800028

Type

Invention Patent

Filing

01/06/1988

Publication

08/02/1988

Progress at the INPI

  1. Filing01/06/88
  2. Publication08/02/88
  3. Examination11/13/90
  4. Allowance
  5. Grant
  6. In force

Published on 08/02/1988, 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: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E.C.C. America, Inc.

US

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Inventors

E. A. (pessoa física)

US

R. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

001,889 · 01/09/1987

US

043,214 · 04/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/02/1988

RPI 928

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Retificação

#15.3

06/09/1992

RPI 1123

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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