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Official data from INPI

ESPUMA ISOLANTE DE POLÍMERO ALCENIL AROMÁTICO

Em AnáliseInvention PatentPCT · US1989004639

Application data

Number

PI8907721

Type

Invention Patent

Filing

10/17/1989

Publication

07/30/1991

PCT

US1989004639

Progress at the INPI

  1. Filing10/17/89
  2. Publication07/30/91
  3. Examination11/03/92
  4. Allowance
  5. Grant
  6. In force

Published on 07/30/1991, 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: 10/04/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

J. S. (pessoa física)

K. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

258.750 · 10/17/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

10/04/1994

RPI 1244

15.9

11/03/1992

RPI 1144

Solicitação de exame técnico

#4.1

11/03/1992

RPI 1144

Notificação de entrada na fase nacional - PCT

#1.3

07/30/1991

RPI 1078

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