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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UMA RESINA QUELANTE AMINOMETILFOSFÔNICA

Em AnáliseInvention PatentPCT · US1989002654

Application data

Number

PI8906972

Type

Invention Patent

Filing

06/16/1989

Publication

12/11/1990

PCT

US1989002654

Progress at the INPI

  1. Filing06/16/89
  2. Publication12/11/90
  3. Examination11/12/91
  4. Allowance
  5. Grant
  6. In force

Published on 12/11/1990, 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: 11/21/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

E. J. (pessoa física)

DE

J. G. (pessoa física)

DE

S. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

GB

8814275 · 06/16/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

Notificação de entrada na fase nacional - PCT

#1.3

12/11/1990

RPI 1045

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