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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8506970

Type

Invention Patent

Filing

10/04/1985

Publication

12/23/1986

Progress at the INPI

  1. Filing10/04/85
  2. Publication12/23/86
  3. Examination11/06/90
  4. Allowance
  5. Grant
  6. In force

Published on 12/23/1986, 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: 12/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oxygen Enrichment Company, Ltd.

US

Inventors

B. [. (pessoa física)

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

12/23/1986

RPI 844

Retificação

#15.3

10/13/1992

RPI 1141

Solicitação de exame técnico

#4.1

11/06/1990

RPI 1040

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