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

Sistema de retenção para dreno de teto flutuante

Em AnáliseInvention Patent

Application data

Number

PI7607433

Type

Invention Patent

Filing

11/08/1976

Publication

-

Progress at the INPI

  1. Filing11/08/76
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant
  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: 06/18/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

See this company's full portfolio

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

06/18/1985

RPI 765

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

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.