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Official data from INPI

SOLUÇÃO AQUOSA DOS SAIS SOLÚVEIS DE BI, PB, SR, CA E CU; COMPOSIÇÃO; PASTA AQUOSA; SÓLIDOS SECOS; MISTURA CALCINADA; E PROCESSO DE PREPARAÇÃO DE UMA PRÉ-MISTURA

Em AnáliseInvention Patent

Application data

Number

PI8906171

Type

Invention Patent

Filing

11/23/1989

Publication

09/25/1990

Progress at the INPI

  1. Filing11/23/89
  2. Publication09/25/90
  3. Examination06/16/92
  4. Allowance
  5. Grant
  6. In force

Published on 09/25/1990, 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: 08/23/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W R Grace & Co -Conn

US

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Inventors

N. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

324.482 · 03/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

06/16/1992

RPI 1124

Publicação do pedido de patente

#3.1

09/25/1990

RPI 1034

Pedido de patente depositado

#2.1

04/03/1990

RPI 1012

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