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Official data from INPI

SISTEMA E METODO DE CONCENTRACAO EM CONTRA-CORRENTE DE ESTAGIOS MULTIPLOS

Em AnáliseInvention Patent
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Application data

Number

PI8107039

Type

Invention Patent

Filing

10/30/1980

Publication

07/20/1982
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Progress at the INPI

  1. Filing10/30/80
  2. Publication07/20/82
  3. Examination11/09/82
  4. Refused08/25/87
  5. Grant
  6. In force

The application was refused on 08/25/1987 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GRASSO KONINKL MASCHF [NL]

Inventors

P. J. (pessoa física)

R. P. (pessoa física)

Technical data

IPC Classification

A23L 2/12A23L 3/36B01D 33/073C12G 3/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

08/25/1987

RPI 879

Petição de recurso

#12.2

01/13/1987

RPI 847

Petição de recurso

#12.2

12/02/1986

RPI 841

Indeferimento

#9.2

07/22/1986

RPI 822

Solicitação de exame técnico

#4.1

11/09/1982

RPI 629

Publicação do pedido de patente

#3.1

07/20/1982

RPI 613

Pedido de patente depositado

#2.1

12/15/1981

RPI 582

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