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Official data from INPI

PROCESSO PARA A INTRODUCAO DE MASSA ATIVA EM ESTRUTURAS POROSAS DE ELETRODIOS

Concessão AnuladaInvention Patent

Application data

Number

PI7705454

Type

Invention Patent

Filing

08/18/1976

Publication

-

Progress at the INPI

  1. Filing08/18/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated01/21/92

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

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Latest action published by the INPI: 03/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

V. B. (pessoa física)

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Inventors

W. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

03/30/1982

RPI 597

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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