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Official data from INPI

COMPOSIÇÃO CONSISTINDO EM UM ÓXIDO CONTENDO PELO MENOS DOIS METAIS, COMPOSIÇÃO ISENTA DE MATERIAL ORGÂNICO, PASTA AQUOSA E PROCESSO

Prazo de SigiloInvention Patent

Application data

Number

PI8900939

Type

Invention Patent

Filing

03/01/1989

Publication

08/28/1990

Progress at the INPI

  1. Filing03/01/89
  2. Publication08/28/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 03/01/1989 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W R Grace & Co -CONN

US

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Inventors

J. R. (pessoa física)

N. S. (pessoa física)

W. P. (pessoa física)

Technical data

IPC Classification

Priority claims

US

237.268 · 08/26/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/11/1989

RPI 964

Arquivamento - Art. 33 da LPI

#11.1

12/22/1992

RPI 1151

Publicação do pedido de patente

#3.1

08/28/1990

RPI 1030

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