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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE COPOLÍMERO EM BLOCO HIDROGENADO E RAMIFICADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103145

Type

Invention Patent

Filing

07/23/1991

Publication

05/05/1992

Progress at the INPI

  1. Filing07/23/91
  2. Publication05/05/92
  3. Examination04/19/94
  4. Allowance08/31/99
  5. Grant02/22/00
  6. Expired06/04/13

The letters patent expired on 06/04/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Enichem Elastomeri S.R.L.

IT

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Inventors

G. V. (pessoa física)

IT

S. C. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

21042 A/90 · 07/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/07/2011

06/04/2013

RPI 2213

16.3

Ref. RPI 1520 de 22/02/2000 item (51)

11/04/2003

RPI 1713

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

08/31/1999

RPI 1495

Exigência - art. 36 da LPI

#6.1

12/22/1998

RPI 1459

Solicitação de exame técnico

#4.1

04/19/1994

RPI 1220

Publicação do pedido de patente

#3.1

05/05/1992

RPI 1118

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