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Official data from INPI

SISTEMA PARA DETERMINAR OS PARAMETROS DE DESEMPENHO DE UM CONVERSOR DE ENERGIA,PARA MEDIR A ENTROPIA DE UM FLUIDO E PARA DETERMINAR A ENTALPIA DA EXPANSAO ISENTROPICA DE UM FLUIDO

ConcedidaInvention Patent
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Application data

Number

PI8306281

Type

Invention Patent

Filing

11/08/1982

Publication

06/19/1984
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Progress at the INPI

  1. Filing11/08/82
  2. Publication06/19/84
  3. Examination10/16/84
  4. Allowance12/03/85
  5. Grant07/29/86
  6. Terminated05/09/95

The patent was granted on 07/29/1986 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

D. J. (pessoa física)

I. K. (pessoa física)

Technical data

IPC Classification

G01N 25/00G01N 25/02G05D 23/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/29/1986

RPI 823

Deferimento

#9.1

12/03/1985

RPI 789

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

10/16/1984

RPI 730

Publicação do pedido de patente

#3.1

06/19/1984

RPI 713

Pedido de patente depositado

#2.1

01/24/1984

RPI 692

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

Pedido de licença compulsória

#20.1

09/10/1991

RPI 1084

Pedido de licença compulsória

#20.1

08/27/1991

RPI 1082

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