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Official data from INPI

DISPOSITIVO DE PENEIRAGEM

Em ExigênciaInvention Patent

Application data

Number

PI8504289

Type

Invention Patent

Filing

09/05/1985

Publication

06/16/1987

Progress at the INPI

  1. Filing09/05/85
  2. Publication06/16/87
  3. Examination08/02/88
  4. Allowance01/23/90
  5. Grant06/26/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Voest-Alpine do Brasil, Equipamentos Industriais Ltda.

RJ, BR

Inventors

E. N. (pessoa física)

AT

H. F. (pessoa física)

AT

R. R. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

A 2199/85 · 07/24/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/08/1989

RPI 981

Solicitação de exame técnico

#4.1

08/02/1988

RPI 928

Publicação antecipada

#3.2

06/16/1987

RPI 869

14.1

03/10/1987

RPI 855

Pedido de patente depositado

#2.1

10/29/1985

RPI 784

Carta-patente expirada

#21.1

Patente extinta em 05/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

06/26/1990

RPI 1024

Deferimento

#9.1

01/23/1990

RPI 1003

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