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Official data from INPI

PRECURSOR DE CATALISADOR SÓLIDO; SISTEMA DE CATALISADOR; E PROCESSO PARA HOMOPOLIMERIZAR ETILENO OU COPOLIMERIZAR ETILENO COM UMA OU MAIS ALFA-OLEFINAS CONTENDO 3 A 8 ÁTOMOS DE CARBONO

Prazo de SigiloInvention Patent

Application data

Number

PI8903253

Type

Invention Patent

Filing

06/30/1989

Publication

02/13/1990

Progress at the INPI

  1. Filing06/30/89
  2. Publication02/13/90
  3. Examination07/02/91
  4. Allowance
  5. Grant
  6. In force

Published on 02/13/1990, 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

F. K. (pessoa física)

US

S. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

214.581 · 07/01/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/24/1989

RPI 992

Retificação

#15.3

02/13/1996

RPI 1315

Solicitação de exame técnico

#4.1

07/02/1991

RPI 1074

Publicação do pedido de patente

#3.1

02/13/1990

RPI 1006

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