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Official data from INPI

ELEMENTO INDICADOR DE CARGA, FIXADOR ADAPTADO PARA MEDIR TENSÃO NO MESMO E PROCESSO PARA A MEDIÇÃO DE TENSÃO EM UM ELEMENTO INDICDOR DE CARGA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100365

Type

Invention Patent

Filing

01/29/1991

Publication

10/22/1991

Progress at the INPI

  1. Filing01/29/91
  2. Publication10/22/91
  3. Examination07/07/92
  4. Allowance03/28/95
  5. Grant10/31/95
  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

SPS Technologies, Inc

US

Inventors

I. K. (pessoa física)

US

Technical data

Priority claims

US

475.057 · 02/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/01/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

03/28/1995

RPI 1269

Solicitação de exame técnico

#4.1

07/07/1992

RPI 1127

Publicação do pedido de patente

#3.1

10/22/1991

RPI 1090

Pedido de patente depositado

#2.1

08/06/1991

RPI 1079

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