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

PROCESSO DE FABRICAÇÃO DE DISPOSITIVO TIRISTORES CONTROLADOS DE EFEITO DE CAMPO E TIRISTORES PLANARES CONTROLADOS DE CAMPO PARA DESLIGAMENTO DE GATILHO E TIRISTORES PLANARES COM EFEITO DE CAMPO DE GATILHO DE JUNÇÃO

ConcedidaInvention Patent

Application data

Number

PI7904561

Type

Invention Patent

Filing

07/13/1979

Publication

-

Progress at the INPI

  1. Filing07/13/79
  2. Publication
  3. Examination06/08/82
  4. Allowance11/01/83
  5. Grant03/27/84
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

B. B. (pessoa física)

W. B. (pessoa física)

Technical data

IPC Classification

Priority claims

US

938020 · 08/30/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Deferimento

#9.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

Patent monitoring

Track this patent in real time.

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