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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE UM MÓDULO DE TROCA DE SUBSTÂNCIAS POR FIBRAS VAZADAS E MÓDULO FABRICADO SEGUNDO ESTE PROCESSO

PublicadaInvention Patent

Application data

Number

PI8704935

Type

Invention Patent

Filing

09/25/1987

Publication

05/24/1988

Progress at the INPI

Technical opinion to answer
  1. Filing09/25/87
  2. Publication05/24/88
  3. Examination09/18/90
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

DE

Inventors

W. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 36 583.1 · 10/28/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

12/22/1987

RPI 896

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B01D 13/04.

03/27/2018

RPI 2464

Retificação

#15.3

03/21/1995

RPI 1268

Conhecimento de parecer técnico

#7.1

07/19/1994

RPI 1233

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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