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Official data from INPI

APERFEICOAMENTOS EM TROCADOR DE CALOR DO TIPO INUNDADO

Em AnáliseInvention Patent

Application data

Number

PI8503398

Type

Invention Patent

Filing

07/12/1985

Publication

02/17/1987

Progress at the INPI

Under appeal
  1. Filing07/12/85
  2. Publication02/17/87
  3. Examination04/26/88
  4. Refused01/02/90
  5. Grant
  6. In force

The application was refused by the INPI on 01/02/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. B. (pessoa física)

Inventors

B. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

04/26/1988

RPI 914

Publicação do pedido de patente

#3.1

02/17/1987

RPI 852

Pedido de patente depositado

#2.1

09/24/1985

RPI 779

Indeferimento

#9.2

01/02/1990

RPI 1000

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