(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

MEDIDOR DA ROTUNDIDADE PARA MEDIR A REDONDEZA DA BANDA DE RODAGEM DE UMA RODA USADA EM FERROVIA.

ConcedidaInvention Patent

Application data

Number

PI8406432

Type

Invention Patent

Filing

12/14/1984

Publication

10/15/1985

Progress at the INPI

  1. Filing12/14/84
  2. Publication10/15/85
  3. Examination01/27/87
  4. Allowance11/03/87
  5. Grant06/28/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMSTED INDUSTRIES INCORPORATED

See this company's full portfolio

Inventors

W. D. (pessoa física)

W. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

561.568 · 12/15/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/03/1987

RPI 889

Solicitação de exame técnico

#4.1

01/27/1987

RPI 849

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Carta-patente expirada

#21.1

Patente extinta em 14/12/99

07/08/2008

RPI 1957

Related

Same category

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.