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Official data from INPI

SEM TITULO

PublicadaInvention Patent

Application data

Number

PI8702725

Type

Invention Patent

Filing

05/27/1987

Publication

03/01/1988

Progress at the INPI

  1. Filing05/27/87
  2. Publication03/01/88
  3. Examination08/28/90
  4. Allowance
  5. Grant
  6. In force

Published on 03/01/1988, 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: 03/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

C. M. (pessoa física)

C. D. (pessoa física)

H. S. (pessoa física)

S. J. (pessoa física)

Pessoa física

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/01/1988

RPI 906

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

15.20

04/06/1993

RPI 1166

Retificação

#15.3

10/13/1992

RPI 1141

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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