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

COMPOSICAO LIQUIDA AQUOSA DE TRATAMENTO PARA PROTECAO ANTICORROSIVA DE SUPERFICIES METALICAS E CONCENTRADO PARA A PRODUCAO DE UM LIQUIDO DE TRATAMENTO

ConcedidaInvention Patent

Application data

Number

PI7702097

Type

Invention Patent

Filing

04/02/1976

Publication

-

Progress at the INPI

  1. Filing04/02/76
  2. Publication
  3. Examination
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG

See this company's full portfolio

Inventors

M. S. (pessoa física)

R. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

02/21/1984

RPI 696

Conhecimento de parecer técnico

#7.1

09/06/1983

RPI 672

Exigência - art. 36 da LPI

#6.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

Patent monitoring

Track this patent in real time.

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