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Official data from INPI

CIRCUITO EXCITADOR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004303

Type

Invention Patent

Filing

08/30/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/30/90
  2. Publication09/03/91
  3. Examination11/12/91
  4. Allowance06/29/99
  5. Grant02/22/00
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. K. (pessoa física)

JP

See this company's full portfolio

Inventors

T. S. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

1-102406 · 08/31/1989

JP

2-215496 · 08/14/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/08/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

06/29/1999

RPI 1486

Exigência - art. 36 da LPI

#6.1

12/22/1998

RPI 1459

Exigência - art. 36 da LPI

#6.1

06/23/1998

RPI 1435

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

03/12/1991

RPI 1058

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