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Official data from INPI

SISTEMA E PROCESSO APERFEIÇOADOS PARA A PRODUÇÃO DE NITROGÊNIO

Em AnáliseInvention Patent

Application data

Number

PI9002221

Type

Invention Patent

Filing

05/11/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/11/90
  2. Publication08/13/91
  3. Abandoned08/24/93
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/04/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

See this company's full portfolio

Inventors

R. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

350.849 · 05/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.13

11/04/1997

RPI 1405

11.31

11/04/1997

RPI 1405

Arquivamento - Art. 36 §1° da LPI

#11.2

09/09/1997

RPI 1397

Exigência - art. 36 da LPI

#6.1

12/24/1996

RPI 1360

4.1.2

10/26/1993

RPI 1195

Solicitação de exame técnico

#4.1

08/24/1993

RPI 1186

14.4

06/22/1993

RPI 1177

14.7

06/22/1993

RPI 1177

Solicitação de exame não realizada

#4.2

03/09/1993

RPI 1162

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/25/1990

RPI 1034

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