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Official data from INPI

PROCESSO PARA REMOVEE CINZAS DO CARVAO

Em AnáliseInvention Patent

Application data

Number

PI8106434

Type

Invention Patent

Filing

10/08/1980

Publication

06/22/1982

Progress at the INPI

  1. Filing10/08/80
  2. Publication06/22/82
  3. Examination09/21/82
  4. Allowance10/23/84
  5. Grant04/30/85
  6. Terminated07/12/88

The patent was granted on 04/30/1985 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HITACHI SHIPBUILDING ENG CO [JP]

Inventors

H. K. (pessoa física)

N. T. (pessoa física)

O. E. (pessoa física)

Y. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/23/1984

RPI 731

Exigência - art. 36 da LPI

#6.1

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Publicação do pedido de patente

#3.1

06/22/1982

RPI 609

Pedido de patente depositado

#2.1

11/24/1981

RPI 579

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