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Official data from INPI

COMPOSICAO DE ACO,PROCESSO PARA FABRICAR PRODUTOS DE ACO ALTAMENTE RESISTENTE AO DESGASTE E PRODUTO DE ACO ASSIM FABRICADO

ConcedidaInvention Patent

Application data

Number

PI7802348

Type

Invention Patent

Filing

04/17/1978

Publication

-

Progress at the INPI

  1. Filing04/17/78
  2. Publication
  3. Examination
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FORJAS BRASILEIRAS SA

Inventors

C. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

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

11/29/1983

RPI 684

Conhecimento de parecer técnico

#7.1

03/09/1982

RPI 594

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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