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Official data from INPI

PROCESSO PARA FORMAR A VOLTAGEM DE CONTROLE PARA O MOTOR DE CORRENTE CONTÍNUA DE UM ELEVADOR E DISPOSITIVO PÔR EM PRÁTICA O PROCESSO.

ConcedidaInvention Patent

Application data

Number

PI8404237

Type

Invention Patent

Filing

08/24/1984

Publication

07/23/1985

Progress at the INPI

  1. Filing08/24/84
  2. Publication07/23/85
  3. Examination07/28/87
  4. Allowance05/10/88
  5. Grant11/29/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elevator Gmbh.

CH

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Inventors

M. K. (pessoa física)

FI

O. I. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

833051 · 08/26/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

07/28/1987

RPI 875

Publicação do pedido de patente

#3.1

07/23/1985

RPI 770

Pedido de patente depositado

#2.1

10/30/1984

RPI 732

Carta-patente expirada

#21.1

Patente extinta em 24/08/99

07/08/2008

RPI 1957

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