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Official data from INPI

PROCESSO PARA FORMAR A AMPLITUDE DE TENSÃO DE REFERÊNCIA DE UM INVERSOR DE TRÊS FASES QUE ALIMENTA UM MOTOR COM ROTOR EM FORMA DE GAIOLA E DISPOSITIVO PARA EXECUTAR O PROCESSO

PublicadaInvention Patent

Application data

Number

PI8701228

Type

Invention Patent

Filing

03/18/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing03/18/87
  2. Publication12/22/87
  3. Examination06/12/90
  4. Allowance06/08/93
  5. Grant10/26/93
  6. Terminated12/31/96

The patent was granted on 10/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kone Elevator GmbH

CH

See this company's full portfolio

Inventors

M. K. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

861145 · 03/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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