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Official data from INPI

Processo de fabricação de ácido fosfórico com recuperação dos compostos de fluor e silica.

Em AnáliseInvention Patent

Application data

Number

PI8403290

Type

Invention Patent

Filing

07/03/1984

Publication

06/18/1985

Progress at the INPI

  1. Filing07/03/84
  2. Publication06/18/85
  3. Examination06/02/87
  4. Refused01/15/91
  5. Grant
  6. In force

The application was refused on 01/15/1991 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. B. (pessoa física)

FR

See this company's full portfolio

Inventors

G. N. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

83 11140 · 07/05/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Recurso

#12.1

08/29/1989

RPI 984

Deferimento

#9.1

05/16/1989

RPI 969

Exigência - art. 36 da LPI

#6.1

11/01/1988

RPI 941

Pedido de certificado de adição de invenção

#5.1

10/13/1987

RPI 886

Solicitação de exame técnico

#4.1

06/02/1987

RPI 867

Publicação do pedido de patente

#3.1

06/18/1985

RPI 765

Pedido de patente depositado

#2.1

09/04/1984

RPI 724

Retificação

#15.3

03/05/1991

RPI 1057

131

01/15/1991

RPI 1050

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