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Official data from INPI

DISPOSITIVO PARA AMOSTRAGEM DE MATERIAIS EM TRANSPORTADORES OU ALIMENTADORES DE CANECAS.

Em AnáliseInvention Patent

Application data

Number

PI8108170

Type

Invention Patent

Filing

12/16/1981

Publication

09/20/1983

Progress at the INPI

Under appeal
  1. Filing12/16/81
  2. Publication09/20/83
  3. Examination03/05/85
  4. Refused02/24/93
  5. Grant
  6. In force

The application was refused by the INPI on 02/24/1993. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/05/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

L. G. (pessoa física)

S. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

02/09/1982

RPI 590

Indeferimento

#9.2

02/24/1993

RPI 1160

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