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Official data from INPI

PROCESSO E DISPOSITIVO PARA LIMPEZA DE UM FILTRO DE FULIGEM

Arquivada/ExtintaInvention PatentPCT · EP1990001455

Application data

Number

PI9006917

Type

Invention Patent

Filing

08/31/1990

Publication

01/28/1992

PCT

EP1990001455

Progress at the INPI

  1. Filing08/31/90
  2. Publication01/28/92
  3. Examination06/15/93
  4. Allowance07/19/94
  5. Grant03/28/95
  6. Expired06/15/10

The letters patent expired on 06/15/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Zeuna-Staerker Gmbh & Co Kg

DE

Inventors

A. U. (pessoa física)

DE

E. S. (pessoa física)

DE

P. K. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

90105424.7(EP) · 03/22/1990

DE

P 39 30 428.0 · 09/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/08/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/15/1994

RPI 1250

Deferimento

#9.1

07/19/1994

RPI 1233

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

01/28/1992

RPI 1104

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