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

APARELHO INTERRUPTOR DE CIRCUITO.

ConcedidaInvention Patent

Application data

Number

PI8102307

Type

Invention Patent

Filing

04/14/1981

Publication

12/08/1981

Progress at the INPI

  1. Filing04/14/81
  2. Publication12/08/81
  3. Examination01/10/84
  4. Allowance12/04/84
  5. Grant05/28/85
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

See this company's full portfolio

Inventors

E. J. (pessoa física)

W. J. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

140.554 · 04/15/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/04/1984

RPI 737

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

01/10/1984

RPI 690

Publicação do pedido de patente

#3.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

Patent monitoring

Track this patent in real time.

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