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Official data from INPI

SISTEMA E PROCESSO APERFEIÇOADOS PARA A PRODUÇÃO DE NITROGÊNIO SECO DE ALTA PUREZA A PARTIR DO AR

ArquivadaInvention Patent

Application data

Number

PI9002218

Type

Invention Patent

Filing

05/11/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/11/90
  2. Publication08/13/91
  3. Examination04/06/93
  4. Allowance01/07/97
  5. Abandoned
  6. In force

The application was allowed on 01/07/1997 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 01/27/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

Union Carbide Industrial Gases Technology Corporation

US

See this company's full portfolio

Inventors

J. S. (pessoa física)

US

O. H. (pessoa física)

US

R. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

350.772 · 05/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

01/27/1998

RPI 1414

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

01/07/1997

RPI 1362

14.4

06/22/1993

RPI 1177

14.7

06/22/1993

RPI 1177

Solicitação de exame técnico

#4.1

04/06/1993

RPI 1166

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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