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Official data from INPI

PROCESSO PARA TRATAR FERRO EM FUSAO PARA PRODUZIR UM FERRO FUNDIDO E LIGA PARA USO NO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7700803

Type

Invention Patent

Filing

02/10/1976

Publication

-

Progress at the INPI

  1. Filing02/10/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 05/24/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

Inventors

D. J. (pessoa física)

L. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

05/24/1983

RPI 657

Pedido de licença voluntária

#17.1

12/14/1982

RPI 634

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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