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Official data from INPI

CIRCUITO DE COMUTAÇÃO AUTOMÁTICA DE TENSÃO DE SUPRIMENTO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100897

Type

Invention Patent

Filing

02/28/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing02/28/91
  2. Publication11/05/91
  3. Examination05/12/92
  4. Allowance04/11/00
  5. Grant08/22/00
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gold Star Co., Ltd

KR

Inventors

M. L. (pessoa física)

KR

Technical data

IPC Classification

Priority claims

KR

2213/1990 · 02/28/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/02/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

08/22/2000

RPI 1546

Deferimento

#9.1

04/11/2000

RPI 1527

Exigência - art. 36 da LPI

#6.1

08/24/1999

RPI 1494

Solicitação de exame técnico

#4.1

05/12/1992

RPI 1119

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

09/03/1991

RPI 1083

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