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Official data from INPI

FILTRO À PRESSÃO E PROCESSO DE ESPESSAR DE FORMA CONTÍNUA UMA SUSPENSÃO DE SÓLIDOS.

Em AnáliseInvention Patent

Application data

Number

PI8501568

Type

Invention Patent

Filing

04/03/1985

Publication

12/03/1985

Progress at the INPI

  1. Filing04/03/85
  2. Publication12/03/85
  3. Abandoned11/03/87
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dorr-Oliver

D. I. (pessoa física)

US

Inventors

G. S. (pessoa física)

J. E. (pessoa física)

P. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

597.779 · 04/06/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/03/1987

RPI 889

Publicação do pedido de patente

#3.1

12/03/1985

RPI 789

Pedido de patente depositado

#2.1

06/25/1985

RPI 766

Arquivamento - Art. 36 §1° da LPI

#11.2

04/16/1991

RPI 1063

Exigência - art. 36 da LPI

#6.1

07/24/1990

RPI 1025

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