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Official data from INPI

PROCESSO PARA ELABORACAO DE FERRO GUSA DE BASE,PROCESSO PARA ELABORACAO DE FERROS GUSA DE MOLDAGEM DUTIL,BEM COMO PECAS DE FUNDICAO E TUBOS DE FERRO GUSA DUTIL

Em AnáliseInvention Patent

Application data

Number

PI7708592

Type

Invention Patent

Filing

12/23/1976

Publication

-

Progress at the INPI

  1. Filing12/23/76
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 03/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. M. (pessoa física)

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Inventors

A. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

03/01/1988

RPI 906

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Cessão de direito de exploração

#22.1

05/27/1986

RPI 814

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

6.2

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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