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Official data from INPI

Filtro duplo para um ou mais combustíveis.

Em AnáliseInvention Patent

Application data

Number

PI8108003

Type

Invention Patent

Filing

12/09/1981

Publication

09/13/1983

Progress at the INPI

  1. Filing12/09/81
  2. Publication09/13/83
  3. Examination01/22/85
  4. Refused12/29/87
  5. Grant
  6. In force

The application was refused on 12/29/1987 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Changer - Tecnologia e Patentes Ltda.

RS, BR

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Inventors

C. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

12/29/1987

RPI 897

Petição de recurso

#12.2

06/23/1987

RPI 870

Indeferimento

#9.2

03/04/1987

RPI 854

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

4.1.2

06/18/1985

RPI 765

Solicitação de exame técnico

#4.1

01/22/1985

RPI 744

Publicação do pedido de patente

#3.1

09/13/1983

RPI 673

Pedido de patente depositado

#2.1

02/02/1982

RPI 589

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