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Official data from INPI

DISPOSITIVO DE DISTRIBUICAO DE LIQUIDO E METODO PARA UMA COLUNA DE CONTATO LIQUIDO/VAPOR

Em AnáliseInvention Patent

Application data

Number

PI8400862

Type

Invention Patent

Filing

02/23/1983

Publication

10/02/1984

Progress at the INPI

  1. Filing02/23/83
  2. Publication10/02/84
  3. Abandoned10/07/86
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

Talk to a specialist

Latest action published by the INPI: 05/05/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

See this company's full portfolio

Inventors

H. M. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

05/05/1987

RPI 863

Solicitação de exame técnico

#4.1

10/07/1986

RPI 833

Publicação do pedido de patente

#3.1

10/02/1984

RPI 728

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

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