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Official data from INPI

CIRCUITO DE MEDICAO DE IMPEDANCIA

ConcedidaInvention Patent

Application data

Number

PI8207720

Type

Invention Patent

Filing

06/01/1981

Publication

05/10/1983

Progress at the INPI

  1. Filing06/01/81
  2. Publication05/10/83
  3. Examination02/12/85
  4. Allowance02/04/86
  5. Grant08/26/86
  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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROSEMOUNT INC [US]

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/04/1986

RPI 798

Exigência - art. 36 da LPI

#6.1

08/27/1985

RPI 775

Solicitação de exame técnico

#4.1

02/12/1985

RPI 747

Notificação de entrada na fase nacional - PCT

#1.3

05/10/1983

RPI 655

Carta-patente expirada

#21.1

Patente extinta em 27/05/97

08/19/2008

RPI 1963

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