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Official data from INPI

SUPERFICIE DE EBULICAO PARA TROCADOR DE CALOR E PROCESSO PARA A FABRICACAO DE CAMADA DE METAL

Em AnáliseInvention Patent

Application data

Number

PI8005602

Type

Invention Patent

Filing

09/08/1979

Publication

-

Progress at the INPI

  1. Filing09/08/79
  2. Publication
  3. Examination
  4. Allowance03/31/87
  5. Grant09/29/87
  6. Terminated09/26/89

The patent was granted on 09/29/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ESCHER WYSS GMBH [DE]

Inventors

Z. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

03/31/1987

RPI 858

Conhecimento de parecer técnico

#7.1

11/08/1983

RPI 681

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