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Official data from INPI

VÁLVULA DE CONTROLE DE DOSAGEM PARA SISTEMAS DE FREIO POR PRESSÃO DE FLUIDO

Arquivada/ExtintaInvention PatentPCT · US1989000508

Application data

Number

PI8907635

Type

Invention Patent

Filing

02/09/1989

Publication

07/02/1991

PCT

US1989000508

Progress at the INPI

  1. Filing02/09/89
  2. Publication07/02/91
  3. Examination03/10/92
  4. Allowance03/09/93
  5. Grant07/27/93
  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

Allied-Signal Inc

US

AlliedSignal Inc.

US

Bendix Commercial Vehicle Systems LLC

US

See this company's full portfolio

Inventors

B. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

240.644 · 09/06/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/02/2004

12/29/2009

RPI 2034

Transferência deferida

#25.1

Transferido de: Alliedsignal Inc.

09/13/2005

RPI 1810

Alteração de nome deferida

#25.4

Alterado de: Allied-Signal Inc.

08/30/2005

RPI 1808

Concessão da patente

#16.1

07/27/1993

RPI 1182

Deferimento

#9.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

03/10/1992

RPI 1110

Notificação de entrada na fase nacional - PCT

#1.3

07/02/1991

RPI 1074

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