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Official data from INPI

PROCESSO PARA BRIQUETAGEM DE CARVÃO PARA USO INDUSTRIAL

PublicadaInvention Patent

Application data

Number

PI8604241

Type

Invention Patent

Filing

08/29/1986

Publication

04/26/1988

Progress at the INPI

Under appeal
  1. Filing08/29/86
  2. Publication04/26/88
  3. Examination09/25/90
  4. Refused09/12/95
  5. Grant
  6. In force

The application was refused by the INPI on 09/12/1995. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas de São Paulo S/A - IPT

SP, BR

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Inventors

O. N. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/26/1988

RPI 914

Pedido de patente depositado

#2.1

03/17/1987

RPI 856

Indeferimento

#9.2

09/12/1995

RPI 1293

Conhecimento de parecer técnico

#7.1

03/02/1993

RPI 1161

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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