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

APERFEIÇOAMENTO EM SISTEMAS DE SUPERVISÃO DE LINHAS TELEFÔNICAS PRIVADAS DE RESERVA

ArquivadaInvention Patent

Application data

Number

PI8108476

Type

Invention Patent

Filing

12/29/1981

Publication

08/16/1983

Progress at the INPI

  1. Filing12/29/81
  2. Publication08/16/83
  3. Abandoned12/31/85
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

See this company's full portfolio

Inventors

A. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

04/12/1988

RPI 912

Exigência - art. 36 da LPI

#6.1

11/25/1986

RPI 840

Solicitação de exame técnico

#4.1

12/31/1985

RPI 793

8.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

08/16/1983

RPI 669

Pedido de patente depositado

#2.1

02/24/1982

RPI 592

Patent monitoring

Track this patent in real time.

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