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Official data from INPI

PAINEL INTERCAMBIADOR DE CALOR E PROCESSO DE FABRICACAO

IndeferidaInvention Patent

Application data

Number

PI8504856

Type

Invention Patent

Filing

04/03/1984

Publication

07/22/1986

Progress at the INPI

Under appeal
  1. Filing04/03/84
  2. Publication07/22/86
  3. Examination07/19/88
  4. Refused03/28/89
  5. Grant
  6. In force

The application was refused by the INPI on 03/28/1989. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NORSK HYDRO AS [NO]

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Inventors

C. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

03/28/1989

RPI 962

15.9

07/19/1988

RPI 926

Solicitação de exame técnico

#4.1

07/19/1988

RPI 926

Publicação do pedido de patente

#3.1

07/22/1986

RPI 822

Pedido de patente depositado

#2.1

12/10/1985

RPI 790

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