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Official data from INPI

CONJUNTO DE VÁLVULAS DOSIFICADORAS SENSÍVEIS À DESACELERAÇÃO E À PRESSÃO COM AJUSTABILIDADE DE TORQUE DE FRENAGEM

Arquivada/ExtintaInvention PatentPCT · US1987002542

Application data

Number

PI8707934

Type

Invention Patent

Filing

10/01/1987

Publication

02/13/1990

PCT

US1987002542

Progress at the INPI

  1. Filing10/01/87
  2. Publication02/13/90
  3. Examination06/12/90
  4. Allowance11/26/91
  5. Grant11/24/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/29/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

944.079 · 12/22/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

04/14/1992

RPI 1115

Deferimento

#9.1

11/26/1991

RPI 1095

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

Notificação de entrada na fase nacional - PCT

#1.3

02/13/1990

RPI 1006

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