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Official data from INPI

PROCESSO E DISPOSITIVO APERFEICOADOS PARA A PRODUCAO DE PO DE METAL DE ALTO GRAU DE PUREZA ATRAVES DE AQUECIMENTO COM RAIOS ELETRONICOS

Em AnáliseInvention Patent

Application data

Number

PI7603714

Type

Invention Patent

Filing

06/28/1975

Publication

-

Progress at the INPI

  1. Filing06/28/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/24/82
  6. Terminated05/21/85

The patent was granted on 02/24/1982 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: 05/21/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LEYBOLD HERAEUS GMBH & CO KG

Inventors

A. H. (pessoa física)

H. J. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/21/1985

RPI 761

Cessão de direito de exploração

#22.1

11/13/1984

RPI 734

Concessão da patente

#16.1

02/24/1982

RPI 592

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