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Official data from INPI

PROCEDIMENTO PARA MONITORAR A SEQUÊNCIA DE FASE NUMA REDE TRIFÁSICA E CIRCUITO PARA EXECUTAR O PROCEDIMENTO.

ConcedidaInvention Patent

Application data

Number

PI8104550

Type

Invention Patent

Filing

07/15/1919

Publication

02/22/1983

Progress at the INPI

  1. Filing07/15/19
  2. Publication02/22/83
  3. Examination02/05/85
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elevator GmbH

CH

See this company's full portfolio

Inventors

K. M. (pessoa física)

M. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

02/05/1985

RPI 746

Publicação do pedido de patente

#3.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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