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

DISPOSITIVO DE PROTEÇÃO CONTRA SOBRETENSÃO E PROCESSO PARA COORDENAR DOIS PROTETORES.

Em AnáliseInvention Patent

Application data

Number

PI8501714

Type

Invention Patent

Filing

04/11/1985

Publication

12/10/1985

Progress at the INPI

  1. Filing04/11/85
  2. Publication12/10/85
  3. Examination01/19/88
  4. Allowance04/03/90
  5. Grant12/26/90
  6. Terminated07/25/95

The patent was granted on 12/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Northern Telecom Limited

CA

See this company's full portfolio

Inventors

F. L. (pessoa física)

CA

J. A. (pessoa física)

CA

J. B. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

CA

452.237 · 04/17/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/19/1988

RPI 900

Publicação do pedido de patente

#3.1

12/10/1985

RPI 790

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Republicação - classificação IPC

#15.11

06/04/1991

RPI 1070

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

08/14/1990

RPI 1028

Deferimento

#9.1

04/03/1990

RPI 1012

Patent monitoring

Track this patent in real time.

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