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Official data from INPI

PROCESSO PARA UTILIZAR TRIETILALUMINIO NO PREPARO DE UM SUPORTE DE ALUMOXANA DESTINADO A UM CATALISADOR DE METALOCENO ATIVO.

Em AnáliseInvention PatentPCT · US1989005006

Application data

Number

PI8907158

Type

Invention Patent

Filing

11/07/1989

Publication

02/26/1991

PCT

US1989005006

Progress at the INPI

  1. Filing11/07/89
  2. Publication02/26/91
  3. Examination10/06/92
  4. Allowance
  5. Grant
  6. In force

Published on 02/26/1991, 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

Exxon Chemical Patents Inc

US

See this company's full portfolio

Inventors

M. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

268.834 · 11/08/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

10/06/1992

RPI 1140

Notificação de entrada na fase nacional - PCT

#1.3

02/26/1991

RPI 1056

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