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Official data from INPI

PROCESSO PARA PRODUCAO DE UMA ATMOSFERA GASOSA, CONTENDO HIDROGENIO E NITROGENIO, E, APARELHO PARA SUA EXECUCAO

IndeferidaInvention Patent

Application data

Number

PI8303126

Type

Invention Patent

Filing

06/14/1982

Publication

01/31/1984

Progress at the INPI

Under appeal
  1. Filing06/14/82
  2. Publication01/31/84
  3. Examination04/15/86
  4. Refused04/25/89
  5. Grant
  6. In force

The application was refused by the INPI on 04/25/1989. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LINDE AG [DE]

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Inventors

D. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/25/1989

RPI 966

Conhecimento de parecer técnico

#7.1

09/06/1988

RPI 933

6.2

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

04/15/1986

RPI 808

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

07/26/1983

RPI 666

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