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Official data from INPI

AQUECEDOR DE SOLUÇÃO DE ÓLEO DESASFALTADO PARA UMA TORRE VAPORIZADORA, APROVEITANDO A ALTA TEMPERATURA DOS GASES DE TOPO DE TORRES VAPORIZADORAS DE SOLUÇÃO DE RESÍDUO ASFÁLTICO POR INTERMÉDIO DE PERMUTADORES

Em AnáliseInvention Patent

Application data

Number

PI8904970

Type

Invention Patent

Filing

09/27/1989

Publication

05/29/1990

Progress at the INPI

  1. Filing09/27/89
  2. Publication05/29/90
  3. Examination12/11/90
  4. Refused05/04/93
  5. Grant
  6. In force

The application was refused on 05/04/1993 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: 05/04/1993. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. L. (pessoa física)

PR, BR

Inventors

R. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

05/04/1993

RPI 1170

Petição de recurso

#12.2

10/27/1992

RPI 1143

Indeferimento

#9.2

06/30/1992

RPI 1126

Solicitação de exame técnico

#4.1

12/11/1990

RPI 1045

Publicação antecipada

#3.2

05/29/1990

RPI 1020

Pedido de patente depositado

#2.1

03/27/1990

RPI 1011

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