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Official data from INPI

RESINAS DE TROCA IONICA DE POLIAMINA,ESTAVEIS A OXIDACAO,DE ALTA CAPACIDADE E PROCESSO PARA A PREPARACAO DAS MESMAS

Em AnáliseInvention Patent

Application data

Number

PI8507155

Type

Invention Patent

Filing

12/31/1984

Publication

07/14/1987

Progress at the INPI

  1. Filing12/31/84
  2. Publication07/14/87
  3. Abandoned07/26/88
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

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Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

S. [. (pessoa física)

T. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

04/25/1989

RPI 966

Solicitação de exame técnico

#4.1

07/26/1988

RPI 927

Notificação de entrada na fase nacional - PCT

#1.3

07/14/1987

RPI 873

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