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

VÁLVULA GAVETA APERFEIÇOADA

Prazo de SigiloInvention Patent

Application data

Number

PI8900052

Type

Invention Patent

Filing

01/06/1989

Publication

08/14/1990

Progress at the INPI

  1. Filing01/06/89
  2. Publication08/14/90
  3. Examination11/06/90
  4. Allowance06/30/92
  5. Grant04/27/93
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 02/21/1989. 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

A. F. (pessoa física)

BR

C. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 06/01/2004

12/15/2009

RPI 2032

Cessão de direito de exploração

#22.1

08/08/1995

RPI 1288

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

11/17/1992

RPI 1146

Deferimento

#9.1

06/30/1992

RPI 1126

Solicitação de exame técnico

#4.1

11/06/1990

RPI 1040

Publicação do pedido de patente

#3.1

08/14/1990

RPI 1028

Patent monitoring

Track this patent in real time.

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