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Official data from INPI

COMUTADOR MÚLTIPLO CONJUGADO.

ConcedidaUtility Model
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Application data

Number

MU6300477

Type

Utility Model

Filing

04/14/1983

Publication

11/20/1984
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Progress at the INPI

  1. Filing04/14/83
  2. Publication11/20/84
  3. Examination03/12/85
  4. Allowance01/06/87
  5. Grant09/29/87
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. B. (pessoa física)

SP, BR

Inventors

B. [. (pessoa física)

Technical data

IPC Classification

H01H 23/28

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

07/08/1986

RPI 820

Republicação - classificação IPC

#15.11

11/19/1985

RPI 787

Exigência - art. 36 da LPI

#6.1

11/05/1985

RPI 785

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

12/13/1983

RPI 686

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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