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

APERFEICOAMENTO EM PROCESSO DE PROTEGER A REGIAO SUPERFICIAL DE UMA AERONAVE,APERFEICOAMENTO EM REGIAO SUPERFICIAL DE AERONAVE E APERFEICOAMENTO EM SAPATA PROTETORA PARA REGIAO SUPERFICIAL DE AERONAVE

Em AnáliseInvention Patent

Application data

Number

PI7708394

Type

Invention Patent

Filing

12/17/1976

Publication

-

Progress at the INPI

  1. Filing12/17/76
  2. Publication
  3. Examination
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUCAS INDUSTRIES LTD

See this company's full portfolio

Inventors

L. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

03/31/1987

RPI 858

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

6.2

11/03/1981

RPI 576

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

Patent monitoring

Track this patent in real time.

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