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Official data from INPI

PROCESSO PARA SUB-RESFRIAR UMA CORRENTE DE HIDROCARBONETO NORMALMENTE GASOSA

PublicadaInvention Patent

Application data

Number

PI8802056

Type

Invention Patent

Filing

04/28/1988

Publication

01/03/1989

Progress at the INPI

  1. Filing04/28/88
  2. Publication01/03/89
  3. Examination01/08/91
  4. Allowance
  5. Grant
  6. In force

Published on 01/03/1989, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The M.W. Kellogg Company

US

See this company's full portfolio

Inventors

C. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

065,743 · 06/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/03/1989

RPI 950

Pedido de patente depositado

#2.1

09/13/1988

RPI 934

Retificação

#15.3

05/24/1994

RPI 1225

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

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