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Official data from INPI

COMPOSICAO DE REVESTIMENTO PARA PROTEGER SUPERFICIE CONTRA CORROSAO;COMPOSICAO DE REVESTIMENTO PARA AUMENTAR A RESISTENCIA A CORROSAO DE SUPERFICIE E PROCESSO PARA PROTEGER SUPERFICIE CONTRA CORROSAO

Em AnáliseInvention Patent
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Application data

Number

PI8603164

Type

Invention Patent

Filing

07/10/1985

Publication

09/01/1987
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Progress at the INPI

  1. Filing07/10/85
  2. Publication09/01/87
  3. Abandoned11/01/88
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL CHEMICALS INC [US]

Inventors

C. A. (pessoa física)

D. A. (pessoa física)

F. K. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

C09D 1/00C09D 5/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/01/1988

RPI 941

Publicação do pedido de patente

#3.1

09/01/1987

RPI 880

14.1

06/30/1987

RPI 871

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Arquivamento - Art. 36 §1° da LPI

#11.2

07/31/1990

RPI 1026

6.2

01/02/1990

RPI 1000

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