Official data from INPI

MONITOR DE DESEMPENHO DE PERMUTADOR DE CALOR

ConcedidaInvention Patent

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Application data

Number

PI8500511

Type

Invention Patent

Filing

02/05/1985

Publication

12/03/1985

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Progress at the INPI

Filing02/05/85
Publication12/03/85
Examination05/06/86
Allowance02/28/89
Grant09/26/89
Terminated07/25/95

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Babcock & Wilcox tracy Power, Inc

Inventors

A. K. (pessoa física)

M. K. (pessoa física)

Technical data

IPC Classification

F28F 27/00

Priority claims

592.498 · 03/23/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação do pedido de patente

#3.1

12/03/1985

RPI 789

Pedido de patente depositado

#2.1

04/30/1985

RPI 758

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Licença compulsória (variante)

#20.2

03/17/1992

RPI 1111

Pedido de licença compulsória

#20.1

09/10/1991

RPI 1084

20.3