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Official data from INPI

MÉTODO E DISPOSITIVO DE QUEIMA DESCONTÍNUA DE FULIGEM

PublicadaInvention Patent

Application data

Number

PI8804640

Type

Invention Patent

Filing

09/05/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing09/05/88
  2. Publication04/18/89
  3. Examination05/01/90
  4. Allowance06/02/92
  5. Grant04/27/93
  6. Terminated06/25/96

The patent was granted on 04/27/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filterwerk Mann & Hummel Gmbh

DE

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Inventors

F. Z. (pessoa física)

DE

G. W. (pessoa física)

DE

H. E. (pessoa física)

DE

M. W. (pessoa física)

DE

R. N. (pessoa física)

DE

Technical data

Priority claims

DE

P37296671 · 09/04/1987

DE

P37354124 · 10/20/1987

DE

P38211432 · 06/23/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

06/02/1992

RPI 1122

Exigência - art. 36 da LPI

#6.1

10/22/1991

RPI 1090

Solicitação de exame técnico

#4.1

05/01/1990

RPI 1016

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