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Official data from INPI

PROCESSO PARA REMOVER CINZA DE CARVAO

ConcedidaInvention Patent

Application data

Number

PI8208076

Type

Invention Patent

Filing

04/14/1982

Publication

04/17/1984

Progress at the INPI

  1. Filing04/14/82
  2. Publication04/17/84
  3. Examination09/11/84
  4. Allowance05/17/88
  5. Grant12/27/88
  6. Terminated10/16/90

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HITACHI SHIPBUILDING ENG CO [JP]

Inventors

K. [. (pessoa física)

O. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Conhecimento de parecer técnico

#7.1

11/19/1985

RPI 787

Solicitação de exame técnico

#4.1

09/11/1984

RPI 725

Notificação de entrada na fase nacional - PCT

#1.3

04/17/1984

RPI 704

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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