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Official data from INPI

PROCESSO DE PREPARAÇÃO DE UM POLÍMERO OLEFÍNICO HALOGENADO OXIDADO, PROCESSO DE PREPARAÇÃO DE UM COPOLÍMERO DE ENXERTO E COMPOSIÇÃO

Prazo de SigiloInvention Patent

Application data

Number

PI8902899

Type

Invention Patent

Filing

05/29/1989

Publication

12/26/1990

Progress at the INPI

  1. Filing05/29/89
  2. Publication12/26/90
  3. Abandoned06/15/93
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

D. P. (pessoa física)

J. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/25/1989

RPI 979

Arquivamento - Art. 36 §1° da LPI

#11.2

09/26/1995

RPI 1295

Exigência - art. 36 da LPI

#6.1

01/03/1995

RPI 1257

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

12/26/1990

RPI 1047

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