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Official data from INPI

PROCESSO E APARELHO DE DESIDRATAÇÃO DE GÁS E PROCESSO PARA REDUZIR A POROSIDADE DE MEMBRANAS DE SEPARAÇÃO DE GÁS ASSIMÉTRICAS, NÃO REVESTIDAS, PRÉ-FORMADAS

PublicadaInvention Patent

Application data

Number

PI8806916

Type

Invention Patent

Filing

12/27/1988

Publication

08/29/1989

Progress at the INPI

  1. Filing12/27/88
  2. Publication08/29/89
  3. Abandoned08/21/90
  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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Permea, Inc

US

Inventors

A. R. (pessoa física)

M. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

137.901 · 12/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/29/1989

RPI 984

Pedido de patente depositado

#2.1

05/02/1989

RPI 967

Arquivamento - Art. 36 §1° da LPI

#11.2

02/01/2000

RPI 1517

Exigência - art. 36 da LPI

#6.1

03/23/1999

RPI 1472

Exigência - art. 36 da LPI

#6.1

01/09/1996

RPI 1310

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

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