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Official data from INPI

PROCESSO PARA ESTABILIZAR POLIOLEFINAS, POLIMERO E POLIPROPILENO.

Prazo de SigiloInvention Patent

Application data

Number

PI8903236

Type

Invention Patent

Filing

06/30/1989

Publication

02/13/1990

Progress at the INPI

  1. Filing06/30/89
  2. Publication02/13/90
  3. Examination03/24/92
  4. Allowance04/30/96
  5. Grant04/29/97
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

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Inventors

D. R. (pessoa física)

CH

D. S. (pessoa física)

CH

P. M. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

2502/88 · 06/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/24/1989

RPI 992

Carta-patente expirada

#21.1

Patente extinta em 30/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

04/30/1996

RPI 1326

Exigência - art. 36 da LPI

#6.1

08/30/1994

RPI 1239

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Publicação do pedido de patente

#3.1

02/13/1990

RPI 1006

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