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Official data from INPI

ACIONADOR DE VÁLVULA E PROCESSO PARA ACIONAR A HASTE DE VÁLVULA E PARA LIMITAR A VELOCIDADE DA HASTE DE COMPORTA EM UMA VÁLVULA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004558

Type

Invention Patent

Filing

09/12/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/12/90
  2. Publication09/10/91
  3. Examination05/04/93
  4. Allowance03/15/94
  5. Grant10/25/94
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

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Inventors

T. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/449,707 · 12/11/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/09/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

05/04/1993

RPI 1170

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/19/1991

RPI 1059

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