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Official data from INPI

DISPOSICAO CONSTRUTIVA DE TROCADOR DE CALOR DE FLUXO RADIAL

Em AnáliseInvention Patent

Application data

Number

PI8104246

Type

Invention Patent

Filing

07/01/1981

Publication

02/08/1983

Progress at the INPI

  1. Filing07/01/81
  2. Publication02/08/83
  3. Examination09/13/83
  4. Refused03/26/85
  5. Grant
  6. In force

The application was refused on 03/26/1985 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. D. (pessoa física)

W. L. (pessoa física)

Inventors

R. [. (pessoa física)

W. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

03/26/1985

RPI 753

Petição de recurso

#12.2

08/21/1984

RPI 722

Indeferimento

#9.2

05/08/1984

RPI 707

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Publicação do pedido de patente

#3.1

02/08/1983

RPI 642

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