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Official data from INPI

COMPOSTOS CONTENDO GRUPOS DE AMONIO QUATERNARIO E DE ACIDO METILENOFOSFONICO

Em AnáliseInvention Patent

Application data

Number

PI8403761

Type

Invention Patent

Filing

07/25/1984

Publication

03/04/1986

Progress at the INPI

  1. Filing07/25/84
  2. Publication02/26/85
  3. Abandoned01/19/88
  4. Allowance
  5. Grant
  6. In force

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

Talk to a specialist

Latest action published by the INPI: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

W. A. (pessoa física)

W. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

09/20/1988

RPI 935

Solicitação de exame técnico

#4.1

01/19/1988

RPI 900

Publicação do pedido de patente

#3.1

03/04/1986

RPI 802

Publicação do pedido de patente

#3.1

02/26/1985

RPI 749

Pedido de patente depositado

#2.1

10/02/1984

RPI 728

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