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Official data from INPI

PROCESSO DE TRATAMENTO DE ÁGUAS SERVIDAS INDUSTRIAIS QUE CONTÊM CIANETO PARA A CONVERSÃO DE SUBSTÂNCIAS TÓXICAS DE CIANETO EM MATERIAIS NÃO TÓXICOS

Em AnáliseInvention Patent

Application data

Number

PI9002279

Type

Invention Patent

Filing

05/16/1990

Publication

08/06/1991

Progress at the INPI

  1. Filing05/16/90
  2. Publication08/06/91
  3. Examination03/17/92
  4. Allowance
  5. Grant
  6. In force

Published on 08/06/1991, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 10/08/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

DE

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Inventors

D. G. (pessoa física)

US

E. H. (pessoa física)

M. A. (pessoa física)

R. N. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

354.039 · 05/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

10/08/1996

RPI 1349

Solicitação de exame técnico

#4.1

03/17/1992

RPI 1111

Publicação do pedido de patente

#3.1

08/06/1991

RPI 1079

Pedido de patente depositado

#2.1

09/25/1990

RPI 1034

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