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Official data from INPI

COMPOSIÇÃO DE PRÉ-POLÍMERO LÍQUIDO DE ISOCIANATO

Prazo de SigiloInvention Patent

Application data

Number

PI8902188

Type

Invention Patent

Filing

05/10/1989

Publication

01/02/1990

Progress at the INPI

  1. Filing05/10/89
  2. Publication01/02/90
  3. Examination02/25/92
  4. Allowance
  5. Grant
  6. In force

Published on 01/02/1990, 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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

C. B. (pessoa física)

W. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

193.306 · 05/11/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/04/1989

RPI 976

Retificação

#15.3

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

01/02/1990

RPI 1000

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