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Official data from INPI

FILTRO DE PRESSÃO.

Em ExigênciaInvention Patent

Application data

Number

PI8400281

Type

Invention Patent

Filing

01/24/1984

Publication

08/28/1984

Progress at the INPI

Under appeal
  1. Filing01/24/84
  2. Publication08/28/84
  3. Examination01/02/85
  4. Refused12/26/90
  5. Grant
  6. In force

The application was refused by the INPI on 12/26/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

English Clays Lovering Pochin & Company Limited

Inventors

J. T. (pessoa física)

W. W. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8301927 · 01/24/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

04/11/1989

RPI 964

6.2

06/28/1988

RPI 923

14.4

01/21/1987

RPI 848

Solicitação de exame técnico

#4.1

01/02/1985

RPI 741

Publicação do pedido de patente

#3.1

08/28/1984

RPI 723

Pedido de patente depositado

#2.1

04/10/1984

RPI 703

Indeferimento

#9.2

12/26/1990

RPI 1047

Conhecimento de parecer técnico

#7.1

01/09/1990

RPI 1001

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