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Official data from INPI

SENSOR DE PRESSÃO CAPACITIVO DIFERENCIAL E PROCESSO DE PROPORCIONAR PROTEÇÃO CONTRA SOBREPRESSÃO PARA O MESMO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000012

Type

Invention Patent

Filing

01/02/1990

Publication

10/09/1990

Progress at the INPI

  1. Filing01/02/90
  2. Publication10/09/90
  3. Examination03/16/93
  4. Allowance08/16/94
  5. Grant03/28/95
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

D. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

292,281 · 12/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/01/2005

05/11/2010

RPI 2053

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

12/13/1994

RPI 1254

Deferimento

#9.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

03/16/1993

RPI 1163

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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