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Official data from INPI

MÉTODO PARA O APERFEIÇOAMENTO DA PRECISÃO EM DETECTORES DE IMPEDÂNCIA EM RADIOSSONDAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100714

Type

Invention Patent

Filing

02/21/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/21/91
  2. Publication10/29/91
  3. Examination06/30/92
  4. Allowance04/18/95
  5. Grant11/28/95
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Vaisala Oy

FI

V. O. (pessoa física)

FI

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Inventors

J. P. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

900873 · 02/21/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/02/2006

06/22/2010

RPI 2059

Alteração de nome deferida

#25.4

Alterado de: Vaisala Oy

11/07/2000

RPI 1557

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

09/12/1995

RPI 1293

Deferimento

#9.1

04/18/1995

RPI 1272

Solicitação de exame técnico

#4.1

06/30/1992

RPI 1126

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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