Official data from INPI

MŠTODO PARA CLAREAR SOLUÇÕES DE AÇUCAR

Em AnáliseInvention Patent

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Application data

Number

PI8202189

Type

Invention Patent

Filing

04/16/1982

Publication

11/22/1983

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Progress at the INPI

Filing04/16/82
Publication11/22/83
Examination06/19/84
Refused04/22/86
Grant
In force

The application was refused on 04/22/1986 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: 04/22/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Agengy of Industrial Science & Technology

Hokkaido Soda Co., Ltd

Mitsui Sugar Co. Ltd .,

Sumitomo Jukikai Envirotech ,Inc

Inventors

K. S. (pessoa física)

K. K. (pessoa física)

K. H. (pessoa física)

R. I. (pessoa física)

S. Y. (pessoa física)

T. I. (pessoa física)

T. K. (pessoa física)

Y. I. (pessoa física)

Technical data

IPC Classification

C13D 3/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

04/22/1986

RPI 809

Recurso

#12.1

09/03/1985

RPI 776

Indeferimento

#9.2

05/14/1985

RPI 760

Solicitação de exame técnico

#4.1

06/19/1984

RPI 713

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

06/08/1982

RPI 607

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