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Official data from INPI

SISTEMA CONTROLADOR DE FREIO

Prazo de SigiloInvention Patent

Application data

Number

PI8803234

Type

Invention Patent

Filing

06/30/1988

Publication

02/06/1990

Progress at the INPI

  1. Filing06/30/88
  2. Publication02/06/90
  3. Examination02/25/92
  4. Allowance03/09/93
  5. Grant09/28/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kelsey-Hayes Company

US

See this company's full portfolio

Inventors

T. A. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/29/1988

RPI 945

Carta-patente expirada

#21.1

Patente extinta em 30/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

06/29/1993

RPI 1178

Deferimento

#9.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

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