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

SISTEMA DE CÓDIGOS DE IMPULSO.

ConcedidaInvention Patent

Application data

Number

PI8203678

Type

Invention Patent

Filing

06/24/1982

Publication

06/21/1983

Progress at the INPI

  1. Filing06/24/82
  2. Publication06/21/83
  3. Examination04/16/85
  4. Allowance05/10/88
  5. Grant12/27/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Switch & Signal Inc.

US

See this company's full portfolio

Inventors

N. C. (pessoa física)

Technical data

IPC Classification

Priority claims

US

284.150 · 07/17/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Republicação - classificação IPC

#15.11

08/02/1988

RPI 928

Deferimento

#9.1

05/10/1988

RPI 916

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

04/16/1985

RPI 756

Publicação do pedido de patente

#3.1

06/21/1983

RPI 661

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

Patente extinta em 24/06/97

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

05/08/1990

RPI 1017

Patent monitoring

Track this patent in real time.

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