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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CATALISADORES E APLICAÇÃO

Prazo de SigiloInvention Patent

Application data

Number

PI8904062

Type

Invention Patent

Filing

08/11/1989

Publication

04/10/1990

Progress at the INPI

  1. Filing08/11/89
  2. Publication04/10/90
  3. Examination05/12/92
  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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

D. S. (pessoa física)

DE

D. P. (pessoa física)

DE

Technical data

Priority claims

DE

P 38 27 596.1 · 08/13/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/07/1989

RPI 994

Carta-patente expirada

#21.1

Patente extinta em 11/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/29/1997

RPI 1378

Republicação - classificação IPC

#15.11

02/18/1997

RPI 1368

Deferimento

#9.1

04/30/1996

RPI 1326

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Solicitação de exame técnico

#4.1

05/12/1992

RPI 1119

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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