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Official data from INPI

APARELHO DE CONTATO DE RESINA TROCADORA DE ION E PROCESSO PARA CONCENTRACAO DE IONS OU REMOCAO DE IONS DE UM LIQUIDO

ArquivadaInvention Patent

Application data

Number

PI8305904

Type

Invention Patent

Filing

10/26/1983

Publication

06/04/1985

Progress at the INPI

  1. Filing10/26/83
  2. Publication06/04/85
  3. Abandoned09/03/85
  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.

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Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

P. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

04/28/1987

RPI 862

Arquivamento - Art. 36 §1° da LPI

#11.2

03/17/1987

RPI 856

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

09/03/1985

RPI 776

Publicação do pedido de patente

#3.1

06/04/1985

RPI 763

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

Republicação - classificação IPC

#15.11

A classificação anterior era: B01J 47/00

07/25/2017

RPI 2429

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