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

DISPOSITIVO CONTROLADOR DA POSICAO DE INTERFACE DE LIQUIDOS IMISCIVEIS COM UTILIZACAO DE UM TRANSMISSOR DE PRESSAO DIFERENCIAL HIDRAULICO

Em AnáliseInvention Patent

Application data

Number

PI8002047

Type

Invention Patent

Filing

04/02/1980

Publication

10/06/1981

Progress at the INPI

  1. Filing04/02/80
  2. Publication10/06/81
  3. Examination
  4. Allowance05/15/84
  5. Grant12/26/84
  6. Terminated05/16/89

The patent was granted on 12/26/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IPEN SAO PAULO INST PESQUISAS [BR]

See this company's full portfolio

Inventors

A. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/16/1989

RPI 969

Cessão de direito de exploração

#22.1

11/26/1985

RPI 788

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/15/1984

RPI 708

Republicação - classificação IPC

#15.11

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame não realizada

#4.2

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Patent monitoring

Track this patent in real time.

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