Official data from INPI

FORNO DE SIEMENS-MARTIN, E PROCESSO PARA SUA OPERAÇÃO

ConcedidaInvention Patent

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Application data

Number

PI8201304

Type

Invention Patent

Filing

03/11/1982

Publication

01/25/1983

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Progress at the INPI

Filing03/11/82
Publication01/25/83
Examination02/20/85
Allowance05/05/87
Grant10/27/87
Terminated02/11/92

The patent was granted on 10/27/1987 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Korf Technologies, Inc.

Inventors

W. W. (pessoa física)

Technical data

IPC Classification

C21C 5/04 F27B 3/22

Priority claims

243.019 · 03/12/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Deferimento

#9.1

05/05/1987

RPI 863

14.1

12/02/1986

RPI 841

Exigência - art. 36 da LPI

#6.1

09/24/1985

RPI 779

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Publicação do pedido de patente

#3.1

01/25/1983

RPI 640

Pedido de patente depositado

#2.1

04/27/1982

RPI 601

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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