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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE COPOLÍMEROS BIMODAIS DE BLOCO EM ESTRELA TENDO CARACTERÍSTICAS ÓTICAS COMBINADA COM ALTO IMPACTO MELHORADO.

PublicadaInvention Patent

Application data

Number

PI8703704

Type

Invention Patent

Filing

07/15/1987

Publication

03/29/1988

Progress at the INPI

  1. Filing07/15/87
  2. Publication03/29/88
  3. Examination08/28/90
  4. Allowance02/24/93
  5. Grant09/28/93
  6. Terminated06/25/96

The patent was granted on 09/28/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montedipe S.p.A.

IT

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Inventors

A. C. (pessoa física)

IT

F. C. (pessoa física)

IT

G. R. (pessoa física)

IT

R. N. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

21165 A/86 · 07/17/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/29/1988

RPI 910

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

06/08/1993

RPI 1175

Deferimento

#9.1

02/24/1993

RPI 1160

Exigência - art. 36 da LPI

#6.1

12/24/1991

RPI 1099

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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