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Official data from INPI

ELIMINAÇÃO DE CARBONATOS DE CONCENTRADOS FOSFÁTICOS ATRAVÉS DE FLOTAÇÃO REVERSA

Em AnáliseInvention Patent

Application data

Number

PI8406252

Type

Invention Patent

Filing

12/07/1984

Publication

06/24/1986

Progress at the INPI

Under appeal
  1. Filing12/07/84
  2. Publication06/24/86
  3. Examination07/26/88
  4. Refused08/27/91
  5. Grant
  6. In force

The application was refused by the INPI on 08/27/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Industrias Nucleares do Brasil S/A - INB

RJ, BR

Inventors

J. J. (pessoa física)

BR

J. B. (pessoa física)

BR

J. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/03/1989

RPI 989

Solicitação de exame técnico

#4.1

07/26/1988

RPI 927

Publicação do pedido de patente

#3.1

06/24/1986

RPI 818

Pedido de patente depositado

#2.1

01/21/1986

RPI 796

Indeferimento

#9.2

08/27/1991

RPI 1082

14.4

04/16/1991

RPI 1063

Retificação

#15.6

02/19/1991

RPI 1055

Retificação

#15.3

01/02/1991

RPI 1048

15.5

08/07/1990

RPI 1027

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