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Official data from INPI

PROCESSO PARA PRODUZIR AUXILIARES DE FILTRACAO DE TERRA DIATOMACEA DE REDUZIDO TEOR DE FERRO SOLUVEL NA CERVEJA

Em AnáliseInvention Patent
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Application data

Number

PI7807377

Type

Invention Patent

Filing

11/09/1977

Publication

-
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Progress at the INPI

  1. Filing11/09/77
  2. Publication
  3. Examination
  4. Refused03/07/84
  5. Grant
  6. In force

The application was refused on 03/07/1984 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: 03/07/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GREFCO

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

03/07/1984

RPI 698

120

08/30/1983

RPI 671

Petição de recurso

#12.2

08/17/1982

RPI 617

Indeferimento

#9.2

05/04/1982

RPI 602

6.2

10/27/1981

RPI 575

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