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Official data from INPI

APERFEIÇOAMENTO DE PROCESSO PARA DISSOLUÇÃO E FILTRAÇÃO DE HIDRÓXIDO DE TÓRIO BRUTO EM ÁCIDO NÍTRICO

PublicadaInvention Patent

Application data

Number

PI8800200

Type

Invention Patent

Filing

01/21/1988

Publication

09/05/1989

Progress at the INPI

Under appeal
  1. Filing01/21/88
  2. Publication09/05/89
  3. Examination01/28/92
  4. Refused03/01/95
  5. Grant
  6. In force

The application was refused by the INPI on 03/01/1995. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. N. (pessoa física)

RJ, BR

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Inventors

C. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/05/1989

RPI 985

Pedido de patente depositado

#2.1

03/07/1989

RPI 959

Indeferimento

#9.2

03/01/1995

RPI 1265

Conhecimento de parecer técnico

#7.1

07/19/1994

RPI 1233

Solicitação de exame técnico

#4.1

01/28/1992

RPI 1104

Solicitação de exame não realizada

#4.2

08/13/1991

RPI 1080

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