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Official data from INPI

PROCESSO E APARELHO UTILIZADOS NA DETERMINAÇÃO DA DENSIDADE DE ESTOCAGEM DE MATERIAIS SÓLIDOS

Em AnáliseInvention Patent

Application data

Number

PI8506624

Type

Invention Patent

Filing

12/19/1985

Publication

02/17/1987

Progress at the INPI

  1. Filing12/19/85
  2. Publication02/17/87
  3. Examination04/28/87
  4. Allowance01/02/90
  5. Grant06/26/90
  6. Terminated03/10/92

The patent was granted on 06/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica de Tubarão S/A - CST

ES, BR

See this company's full portfolio

Inventors

A. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação antecipada

#3.2

02/17/1987

RPI 852

Pedido de patente depositado

#2.1

04/22/1986

RPI 809

Anuidade - prazo legal encerrado

#18.2

03/10/1992

RPI 1110

Concessão da patente

#16.1

06/26/1990

RPI 1024

Deferimento

#9.1

01/02/1990

RPI 1000

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