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Official data from INPI

TRAVESSA DE FREIO DO TIPO TRELIÇADO PARA VAGÕES FERROVIÁRIOS

PublicadaInvention Patent

Application data

Number

PI8803666

Type

Invention Patent

Filing

07/22/1988

Publication

02/14/1989

Progress at the INPI

  1. Filing07/22/88
  2. Publication02/14/89
  3. Examination01/08/91
  4. Allowance04/27/93
  5. Grant11/30/93
  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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Standard Inc

US

See this company's full portfolio

Inventors

A. K. (pessoa física)

US

E. A. (pessoa física)

US

J. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

077,570 · 07/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

01/24/1989

RPI 953

Carta-patente expirada

#21.1

Patente extinta em 22/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/30/1993

RPI 1200

Notificação para pagamento de retribuição

#13.1

08/24/1993

RPI 1186

Deferimento

#9.1

04/27/1993

RPI 1169

Exigência - art. 36 da LPI

#6.1

09/22/1992

RPI 1138

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

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