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Official data from INPI

MÉTODO PARA OBTER, DO AR AMBIENTE, UM PRODUTO ENRIQUECIDO DOM OXIGÊNIO.

Em ExigênciaInvention Patent

Application data

Number

PI8404905

Type

Invention Patent

Filing

12/31/1919

Publication

08/20/1985

Progress at the INPI

  1. Filing12/31/19
  2. Publication08/20/85
  3. Abandoned09/22/87
  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.

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Latest action published by the INPI: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Air Products And Chemicals, Inc

US

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Inventors

S. S. (pessoa física)

W. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

537.309 · 09/29/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/22/1989

RPI 983

6.2

08/02/1988

RPI 928

Solicitação de exame técnico

#4.1

09/22/1987

RPI 883

Publicação do pedido de patente

#3.1

08/20/1985

RPI 774

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Republicação - classificação IPC

#15.11

09/17/1991

RPI 1085

Arquivamento - Art. 36 §1° da LPI

#11.2

03/27/1990

RPI 1011

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