Official data from INPI

COMBUSTOR CERÂMICO PARA GÁS

ConcedidaInvention Patent

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Application data

Number

PI8202294

Type

Invention Patent

Filing

04/20/1982

Publication

11/29/1983

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Progress at the INPI

Filing04/20/82
Publication11/29/83
Examination08/27/85
Allowance04/25/89
Grant10/24/89
Terminated10/29/96

The patent was granted on 10/24/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Estel Hoogovens BV

Inventors

J. B. (pessoa física)

Technical data

IPC Classification

C21B 9/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

08/22/1989

RPI 983

Deferimento

#9.1

04/25/1989

RPI 966

Exigência - art. 36 da LPI

#6.1

10/04/1988

RPI 937

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

11/29/1983

RPI 684

Pedido de patente depositado

#2.1

06/08/1982

RPI 607

Anuidade - prazo legal encerrado

#18.2

10/29/1996

RPI 1352

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BATERIA HORIZONTAL DE FORNOS DE COQUE

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