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Official data from INPI

PROCESSO DE BENEFICIAMENTO DE MOINHA DE CARVÃO VEGETAL.

IndeferidaInvention Patent

Application data

Number

PI8303933

Type

Invention Patent

Filing

07/22/1983

Publication

03/05/1985

Progress at the INPI

Under appeal
  1. Filing07/22/83
  2. Publication03/05/85
  3. Examination06/04/85
  4. Refused05/30/89
  5. Grant
  6. In force

The application was refused by the INPI on 05/30/1989. The invention was never patented.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

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Inventors

P. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/30/1989

RPI 971

Conhecimento de parecer técnico

#7.1

08/12/1986

RPI 825

Solicitação de exame técnico

#4.1

06/04/1985

RPI 763

Publicação do pedido de patente

#3.1

03/05/1985

RPI 750

Pedido de patente depositado

#2.1

09/27/1983

RPI 675

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