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Official data from INPI

ARRANJO DE CONTROLE DE TEMPERATURA PASSIVO PARA AQUECEDOR PARA SENSOR DE CORRENTE DE FLUXO DE FLUIDO

ConcedidaInvention Patent

Application data

Number

PI8207580

Type

Invention Patent

Filing

04/09/1981

Publication

03/29/1983

Progress at the INPI

  1. Filing04/09/81
  2. Publication03/29/83
  3. Examination12/26/84
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROSEMOUNT INC [US]

Inventors

K. [. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Deferimento

#9.1

09/30/1986

RPI 832

8.1

07/22/1986

RPI 822

Exigência - art. 36 da LPI

#6.1

09/03/1985

RPI 776

Solicitação de exame técnico

#4.1

12/26/1984

RPI 740

Notificação de entrada na fase nacional - PCT

#1.3

03/29/1983

RPI 649

Carta-patente expirada

#21.1

Patente extinta em 06/04/97

08/19/2008

RPI 1963

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