Official data from INPI

INSTALACAO DE FILTRAGEM

Em AnáliseInvention Patent

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Application data

Number

PI8102342

Type

Invention Patent

Filing

04/16/1980

Publication

12/22/1981

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Progress at the INPI

Filing04/16/80
Publication12/22/81
Examination08/02/83
Allowance11/13/84
Grant05/28/85
Terminated06/21/88

The patent was granted on 05/28/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INKOMAG

Inventors

H. E. (pessoa física)

K. K. (pessoa física)

N. H. (pessoa física)

Technical data

IPC Classification

B01D 35/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Deferimento

#9.1

11/13/1984

RPI 734

8.1

10/02/1984

RPI 728

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Publicação do pedido de patente

#3.1