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

APARELHO INDICADOR E REGISTRADOR DE VARIÁVEIS DE PROCESSO, PARTICULARMENTE DIFERENÇAS DE POTENCIAIS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001802

Type

Invention Patent

Filing

04/18/1990

Publication

11/12/1991

Progress at the INPI

  1. Filing04/18/90
  2. Publication11/12/91
  3. Examination06/16/92
  4. Allowance08/16/94
  5. Grant05/30/95
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. 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

J. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/04/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

12/13/1994

RPI 1254

Deferimento

#9.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

06/16/1992

RPI 1124

Publicação do pedido de patente

#3.1

11/12/1991

RPI 1093

Pedido de patente depositado

#2.1

09/11/1990

RPI 1032

Related

Same category

Patent monitoring

Track this patent in real time.

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