Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI8008059

Type

Invention Patent

Filing

12/10/1980

Publication

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Progress at the INPI

Filing12/10/80
Publication
Examination01/12/82
Allowance05/22/84
Grant11/27/84
Expired03/19/96

The letters patent expired on 03/19/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Klockner CRA Teclmologies Gmbh.

Inventors

B. L. (pessoa física)

B. K. (pessoa física)

Technical data

IPC Classification

C21C 5/46

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/02/1986

RPI 828

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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