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Official data from INPI

SISTEMA PARA DETECTAR E ISOLAR VAZAMENTOS EM REDES DE DUTOS DE CIRCULAÇÃO DE FLUIDO A ALTA TEMPERATURA

PublicadaInvention Patent

Application data

Number

PI8606388

Type

Invention Patent

Filing

12/23/1986

Publication

10/13/1987

Progress at the INPI

  1. Filing12/23/86
  2. Publication10/13/87
  3. Examination06/12/90
  4. Allowance01/02/91
  5. Grant07/30/91
  6. Terminated06/18/96

The patent was granted on 07/30/1991 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: 10/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

British Aerospace Public Limited Company, companhia britânica

GB

Inventors

D. L. (pessoa física)

GB

W. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8531670 · 12/23/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/13/1987

RPI 886

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Anuidade - prazo legal encerrado

#18.2

06/18/1996

RPI 1333

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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