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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8008759

Type

Invention Patent

Filing

07/15/1980

Publication

-
View on INPI

Progress at the INPI

  1. Filing07/15/80
  2. Publication
  3. Examination05/31/83
  4. Allowance09/13/88
  5. Grant05/30/89
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Societe Française D" Electrometallurgie "SOFREM'

FR

Inventors

B. L. (pessoa física)

B. J. (pessoa física)

D. M. (pessoa física)

D. F. (pessoa física)

S. L. (pessoa física)

Technical data

IPC Classification

C22C 28/00C22C 35/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

01/03/1989

RPI 950

Deferimento

#9.1

09/13/1988

RPI 934

Exigência - art. 36 da LPI

#6.1

03/15/1988

RPI 908

Conhecimento de parecer técnico

#7.1

02/17/1987

RPI 852

Exigência - art. 36 da LPI

#6.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

11/29/1983

RPI 684

Solicitação de exame técnico

#4.1

05/31/1983

RPI 658

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

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