Official data from INPI

METODO E DISPOSITIVO DE REGULAGEM DE PRESSAO E DE FLUIDIFICACAO DE UMA MASSA PULVERULENTA NUM RECEPTACULO DE DISTRIBUICAO

ArquivadaInvention Patent

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Application data

Number

PI8102072

Type

Invention Patent

Filing

04/04/1980

Publication

10/06/1981

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Progress at the INPI

Filing04/04/80
Publication10/06/81
Abandoned10/11/83
Allowance
Grant
In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/23/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WURTH ANCIENS ETS PAUL [LU]

Inventors

U. L. (pessoa física)

Technical data

IPC Classification

C21B 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

04/23/1985

RPI 757

Republicação - classificação IPC

#15.11

04/23/1985

RPI 757

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

10/11/1983

RPI 677

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

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