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Official data from INPI

DISPOSITIVO E METODO PARA MEDIR O FLUXO RELATIVO DE CARVAO PULVERIZADO NUMA PLURALIDADE DE TUBOS

ConcedidaInvention Patent

Application data

Number

PI8405878

Type

Invention Patent

Filing

11/30/1983

Publication

09/17/1985

Progress at the INPI

  1. Filing11/30/83
  2. Publication09/17/85
  3. Examination03/11/86
  4. Allowance06/28/88
  5. Grant04/25/89
  6. Terminated10/16/90

The patent was granted on 04/25/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

G. L. (pessoa física)

T. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

09/17/1985

RPI 778

Pedido de patente depositado

#2.1

01/29/1985

RPI 745

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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