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Official data from INPI

APERFEICOAMENTO DO CALOR CONTIDO NA AGUA DE DESPEJO PARA PRE-AQUECIMENTO DE AGUA IIMPA

Arquivada/ExtintaInvention Patent

Application data

Number

PI7506629

Type

Invention Patent

Filing

10/09/1975

Publication

-

Progress at the INPI

  1. Filing10/09/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant04/27/82
  6. Terminated10/09/95

The patent was granted on 04/27/1982 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/10/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. A. (pessoa física)

Inventors

L. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Extinção — restauração

#21.2

01/10/1984

RPI 690

Concessão da patente

#16.1

04/27/1982

RPI 601

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