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Official data from INPI

MEMBRANAS DE HEXAFLUORO BIS-A POLISSULFONA SULFONADA E PROCESSO PARA SEPARAÇÕES DE FLUIDOS

ArquivadaInvention Patent

Application data

Number

PI9005502

Type

Invention Patent

Filing

10/30/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing10/30/90
  2. Publication09/17/91
  3. Abandoned03/30/93
  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: 04/06/1999. 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

B. B. (pessoa física)

US

G. G. (pessoa física)

DE

J. K. (pessoa física)

Y. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

429.614 · 10/31/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

04/06/1999

RPI 1474

Exigência - art. 36 da LPI

#6.1

05/26/1998

RPI 1431

Exigência - art. 36 da LPI

#6.1

12/05/1995

RPI 1305

14.4

06/29/1993

RPI 1178

14.7

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

03/30/1993

RPI 1165

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/30/1991

RPI 1065

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