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Official data from INPI

MOTOR DE INDUÇÃO EM CURTO-CIRCUITO CONTROLADO POR CONVERSOR DE FREQUÊNCIA

ConcedidaInvention Patent

Application data

Number

PI8202615

Type

Invention Patent

Filing

05/06/1982

Publication

04/19/1983

Progress at the INPI

  1. Filing05/06/82
  2. Publication04/19/83
  3. Examination04/09/85
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elevator GmbH

CH

See this company's full portfolio

Inventors

M. K. (pessoa física)

FI

O. I. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

811414 · 05/07/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

Patente extinta em 06/05/97

07/01/2008

RPI 1956

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