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Official data from INPI

DISPOSITIVO DE SEPARAÇÃO DE MEMBRANA E MÉTODO DE FABRICAÇÃO DO MESMO

Em AnáliseInvention PatentPCT · US1990000715

Application data

Number

PI9005083

Type

Invention Patent

Filing

02/02/1990

Publication

08/06/1991

PCT

US1990000715

Progress at the INPI

  1. Filing02/02/90
  2. Publication08/06/91
  3. Examination10/15/91
  4. Allowance
  5. Grant
  6. In force

Published on 08/06/1991, 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: 11/28/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

J. J. (pessoa física)

US

J. T. (pessoa física)

US

R. K. (pessoa física)

US

T. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

309.756 · 12/09/1989

US

429.928 · 10/30/1989

US

450.933 · 12/14/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

10/15/1991

RPI 1089

Notificação de entrada na fase nacional - PCT

#1.3

08/06/1991

RPI 1079

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