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Official data from INPI

APARELHO PARA CONECTAR UMA BATERIA DE ACUMULADOR A UM CIRCUITO DE CORRENTE CONTÍNUA DE UM INVERSOR DE ELEVADOR

PublicadaInvention Patent
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Application data

Number

PI8706957

Type

Invention Patent

Filing

12/21/1987

Publication

07/26/1988
View on INPI

Progress at the INPI

  1. Filing12/21/87
  2. Publication07/26/88
  3. Examination10/23/90
  4. Allowance04/25/95
  5. Grant10/31/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kone Elevator GmbH

CH

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Inventors

M. K. (pessoa física)

FI

Technical data

IPC Classification

H02M 3/28

Priority claims

FI

865280 · 12/22/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/26/1988

RPI 927

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 21/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

04/25/1995

RPI 1273

Exigência - art. 36 da LPI

#6.1

11/22/1994

RPI 1251

Exigência - art. 36 da LPI

#6.1

03/01/1994

RPI 1213

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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