Official data from INPI

Processo para dissolver rapidamente em água um polímero ou borracha solúveis em água.

Em AnáliseInvention Patent

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Application data

Number

PI8405977

Type

Invention Patent

Filing

11/23/1984

Publication

06/17/1986

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Progress at the INPI

Under appeal

Filing11/23/84
Publication06/17/86
Examination09/23/86
Refused11/06/90
Grant
In force

The application was refused by the INPI on 11/06/1990. The invention was never patented.

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

Applicants and inventors

Applicants

Diachem Industries, Inc

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

08/08/1989

RPI 981

Pedido de certificado de adição de invenção

#5.1

02/10/1987

RPI 851

Solicitação de exame técnico

#4.1

09/23/1986

RPI 831

Publicação do pedido de patente

#3.1

06/17/1986

RPI 817

Pedido de patente depositado

#2.1

02/12/1985

RPI 747

Republicação - classificação IPC

#15.11

09/24/1991

RPI 1086

Indeferimento

#9.2

11/06/1990

RPI 1040

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