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Official data from INPI

PROCESSO PARA PREPARAR ZEÓLITO DE PENEIRA MOLECLULAR DE TITANIOSSILICATO CRISTALINO E PROCESSO PARA REFORMAR NAFTA

Prazo de SigiloInvention Patent

Application data

Number

PI8900091

Type

Invention Patent

Filing

01/10/1989

Publication

08/14/1990

Progress at the INPI

  1. Filing01/10/89
  2. Publication08/14/90
  3. Examination10/13/92
  4. Allowance06/27/95
  5. Grant03/26/96
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

S. K. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 10/01/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

03/26/1996

RPI 1321

Notificação para pagamento de retribuição

#13.1

11/07/1995

RPI 1301

Republicação - classificação IPC

#15.11

07/18/1995

RPI 1285

Deferimento

#9.1

06/27/1995

RPI 1282

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

10/13/1992

RPI 1141

Publicação do pedido de patente

#3.1

08/14/1990

RPI 1028

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