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Official data from INPI

PROCESSO E APARELHO PARA PREAQUECER E PRÉ-REDUZIR MATERIAL QUE CONTÉM ÓXIDO DE METAL

Arquivada/ExtintaInvention PatentPCT · FI1989000057

Application data

Number

PI8907341

Type

Invention Patent

Filing

03/29/1989

Publication

03/19/1991

PCT

FI1989000057

Progress at the INPI

  1. Filing03/29/89
  2. Publication03/19/91
  3. Examination11/05/91
  4. Allowance02/21/96
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

FI

Foster Wheeler Energia OY

FI

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Inventors

H. E. (pessoa física)

SE

R. M. (pessoa física)

FI

Technical data

Priority claims

FI

881486 · 03/30/1988

FI

882975 · 06/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/03/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/30/1997

RPI 1400

14.1

05/13/1997

RPI 1380

Notificação para pagamento de retribuição

#13.1

09/24/1996

RPI 1347

Deferimento

#9.1

02/21/1996

RPI 1316

Solicitação de exame técnico

#4.1

11/05/1991

RPI 1092

Notificação de entrada na fase nacional - PCT

#1.3

03/19/1991

RPI 1059

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