Official data from INPI

SISTEMA DE PURIFICAÇÃO DE ÁGUA.

Arquivada/ExtintaInvention Patent

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Application data

Number

PI8108705

Type

Invention Patent

Filing

07/17/1981

Publication

06/01/1982

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Progress at the INPI

Filing07/17/81
Publication06/01/82
Abandoned03/13/84
Allowance
Grant
In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. G. (pessoa física)

Inventors

G. W. (pessoa física)

Technical data

IPC Classification

C02F 1/28 C02F 1/42 C02F 1/50

Priority claims

81/00965 · 07/17/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/02/1986

RPI 841

8.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

10/02/1984

RPI 728

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Notificação de entrada na fase nacional - PCT

#1.3

06/01/1982

RPI 606

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