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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM PRÉ-POLÍMERO DE ISOCIANATO LÍQUIDO.

Em AnáliseInvention Patent

Application data

Number

PI8905798

Type

Invention Patent

Filing

11/16/1989

Publication

06/12/1990

Progress at the INPI

  1. Filing11/16/89
  2. Publication06/12/90
  3. Examination09/29/92
  4. Allowance
  5. Grant
  6. In force

Published on 06/12/1990, 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: 12/23/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

W. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

272.184 · 11/16/1988

US

300.868 · 01/23/1989

US

300.870 · 01/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/23/1997

RPI 1409

Solicitação de exame técnico

#4.1

09/29/1992

RPI 1139

Publicação do pedido de patente

#3.1

06/12/1990

RPI 1022

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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