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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM COMPOSTO DE POLIÉSTER CONTENDO HIDROGÊNIO ATIVO E COMPOSIÇÃO DE MATÉRIA

Prazo de SigiloInvention Patent

Application data

Number

PI8903784

Type

Invention Patent

Filing

07/28/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing07/28/89
  2. Publication03/20/90
  3. Abandoned05/26/92
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. L. (pessoa física)

J. M. (pessoa física)

R. T. (pessoa física)

Y. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

US

226.302 · 07/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/17/1989

RPI 991

11.31

01/21/1998

RPI 1413

Exigência - art. 36 da LPI

#6.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

06/20/1995

RPI 1281

Solicitação de exame técnico

#4.1

05/26/1992

RPI 1121

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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