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Official data from INPI

PROCESSO E EQUIPAMENTO PARA ADICAO,COM INCORPORACAO,DE MATERIAIS VAPCRIZAVEIS EM METAIS FUNDIDOS OU LIGAS METALICAS FUNDIDAS

Em AnáliseInvention Patent

Application data

Number

PI7602124

Type

Invention Patent

Filing

04/07/1976

Publication

-

Progress at the INPI

  1. Filing04/07/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/27/84
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 10/20/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TUPY FUNDICAO SA

Inventors

F. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

10/20/1987

RPI 887

Pedido de licença compulsória

#20.1

10/13/1987

RPI 886

20.4

10/06/1987

RPI 885

Concessão da patente

#16.1

11/27/1984

RPI 736

15.15

02/28/1984

RPI 697

110

12/27/1983

RPI 688

Recurso

#12.1

06/15/1982

RPI 608

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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