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Official data from INPI

FILTRO DE AR PARA MOTORES DE COMBUSTÃO.

ConcedidaInvention Patent

Application data

Number

PI8104282

Type

Invention Patent

Filing

07/06/1981

Publication

10/20/1981

Progress at the INPI

  1. Filing07/06/81
  2. Publication10/20/81
  3. Examination01/19/82
  4. Allowance02/14/84
  5. Grant09/25/84
  6. Terminated08/07/90

The patent was granted on 09/25/1984 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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filterwerk Mann & Hummel Gmbh.

DE

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Inventors

E. W. (pessoa física)

E. H. (pessoa física)

M. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

G 80 19 041.6 · 07/16/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

01/19/1982

RPI 587

Publicação antecipada

#3.2

10/20/1981

RPI 574

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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