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Official data from INPI

FILTRO DE TRANSCURSO DE LUZ.

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906425

Type

Invention Patent

Filing

12/13/1989

Publication

08/28/1990

Progress at the INPI

  1. Filing12/13/89
  2. Publication08/28/90
  3. Examination02/13/91
  4. Allowance06/28/94
  5. Grant03/28/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Contextrina Ag

CH

Oerlikon-Contraves Ag

CH

Oerlikon Contraves AG

CH

Oerlinkon-Contraves Ag

CH

Werkzeugmaschinenfabrik Oerlikon-Bührle AG

CH

Inventors

G. M. (pessoa física)

CH

S. S. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

4.746/88 · 12/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/12/2004

12/29/2009

RPI 2034

Alteração de nome deferida

#25.4

Alterado de: Werkzeugmaschinenfabrik Oerlikon-Bührle Ag

10/16/2001

RPI 1606

Transferência deferida

#25.1

Transferido de: Contextrina Ag

09/18/2001

RPI 1602

Alteração de nome deferida

#25.4

Alterado de: Oerlikon-Contraves Ag.

08/14/2001

RPI 1597

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/01/1994

RPI 1248

Deferimento

#9.1

06/28/1994

RPI 1230

14.4

07/16/1991

RPI 1076

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

Publicação do pedido de patente

#3.1

08/28/1990

RPI 1030

Pedido de patente depositado

#2.1

04/03/1990

RPI 1012

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