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Official data from INPI

PROCESSO PARA SEPARAR UM COMPONENTE DE UMA MISTURA GASOSA DE 02/N2 OU C02/CH4 CONTENDO TAL COMPONENTE

ArquivadaInvention Patent

Application data

Number

PI8906779

Type

Invention Patent

Filing

12/27/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/27/89
  2. Publication08/21/90
  3. Abandoned12/24/91
  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.

Talk to a specialist

Latest action published by the INPI: 08/29/2000. 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

G. B. (pessoa física)

US

J. K. (pessoa física)

US

N. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

289.668 · 12/27/1988

US

358.631 · 05/03/1989

US

443.207 · 12/06/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/29/2000

RPI 1547

Exigência - art. 36 da LPI

#6.1

07/27/1999

RPI 1490

Exigência - art. 36 da LPI

#6.1

05/19/1998

RPI 1430

14.4

06/29/1993

RPI 1178

14.7

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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