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Official data from INPI

COMPOSIÇÃO ÁCIDA AQUOSA PARA LIMPEZA DE METAIS E MÉTODO DE UTILIZAÇÃO

ArquivadaInvention Patent

Application data

Number

PI8201411

Type

Invention Patent

Filing

03/16/1982

Publication

11/01/1983

Progress at the INPI

  1. Filing03/16/82
  2. Publication11/01/83
  3. Abandoned02/12/86
  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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. W. (pessoa física)

US

W. F. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

09/05/1989

RPI 985

Exigência - art. 36 da LPI

#6.1

01/03/1989

RPI 950

Conhecimento de parecer técnico

#7.1

02/17/1988

RPI 904

Solicitação de exame técnico

#4.1

02/12/1986

RPI 799

3.4

01/03/1984

RPI 689

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

04/27/1982

RPI 601

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