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Official data from INPI

PROCESSO DE PREPARAÇÃO DE CATALISADORES PARA A DESIDROGENAÇÃO DE CICLO-HEXANOL À CICLO-HEXANONA.

PublicadaInvention Patent

Application data

Number

PI8903027

Type

Invention Patent

Filing

06/12/1989

Publication

09/26/1989

Progress at the INPI

  1. Filing06/12/89
  2. Publication09/26/89
  3. Examination05/08/90
  4. Allowance11/11/97
  5. Grant08/25/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oxiteno S/A Industria e Comércio

SP, BR

See this company's full portfolio

Inventors

A. A. (pessoa física)

BR

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

09/26/1989

RPI 988

Pedido de patente depositado

#2.1

08/01/1989

RPI 980

Carta-patente expirada

#21.1

Patente extinta em 12/06/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

10/08/1996

RPI 1349

Solicitação de exame técnico

#4.1

05/08/1990

RPI 1017

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