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Official data from INPI

CONJUNTO DE VALVULA DE BYPASS PARA MEDIDOR DE FLUXO

ConcedidaInvention Patent

Application data

Number

PI8404741

Type

Invention Patent

Filing

09/21/1984

Publication

04/29/1986

Progress at the INPI

  1. Filing09/21/84
  2. Publication04/29/86
  3. Examination06/30/87
  4. Allowance04/12/88
  5. Grant01/10/89
  6. Terminated03/03/92

The patent was granted on 01/10/1989 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIVERSAL FLOW MONITORS INC [US]

Inventors

R. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

07/26/1988

RPI 927

Deferimento

#9.1

04/12/1988

RPI 912

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Publicação do pedido de patente

#3.1

04/29/1986

RPI 810

14.4

07/16/1985

RPI 769

Pedido de patente depositado

#2.1

12/04/1984

RPI 737

Anuidade - prazo legal encerrado

#18.2

03/03/1992

RPI 1109

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