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Official data from INPI

CIRCUITO DE TRANSFERÊNCIA DE FORÇA

Em AnáliseInvention Patent
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Application data

Number

PI8502836

Type

Invention Patent

Filing

06/13/1985

Publication

02/25/1986
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Progress at the INPI

  1. Filing06/13/85
  2. Publication02/25/86
  3. Examination08/05/86
  4. Allowance04/23/91
  5. Grant11/26/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/05/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. K. (pessoa física)

JP

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Inventors

H. T. (pessoa física)

JP

Technical data

IPC Classification

H02M 7/04

Priority claims

JP

141405/1984 · 09/17/1984

JP

88396/1984 · 06/14/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

02/25/1986

RPI 801

Pedido de patente depositado

#2.1

08/20/1985

RPI 774

Carta-patente expirada

#21.1

Patente extinta em 13/06/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

08/06/1991

RPI 1079

Deferimento

#9.1

04/23/1991

RPI 1064

Exigência - art. 36 da LPI

#6.1

10/30/1990

RPI 1039

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