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Official data from INPI

ELETROFILTRO PARA REMOVER SOLIDOS DE UMA CORRENTE DE LIQUIDO ORGANICO DE ALTA RESISTENCIA,PROCESSO DE ELETROFILTRAGEM E PROCESSO PARA A OBTENCAO DE UM LIQUIDO ORGANICO BRILHANTE E CLARO

Em AnáliseInvention Patent

Application data

Number

PI7607919

Type

Invention Patent

Filing

11/28/1975

Publication

-

Progress at the INPI

  1. Filing11/28/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/25/82
  6. Terminated11/24/87

The patent was granted on 05/25/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PETROLITE CORP

Inventors

S. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Concessão da patente

#16.1

05/25/1982

RPI 605

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