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Official data from INPI

INVERSOR PARA CONVERTER VOLTAGEM CONTÍNUA EM VOLTAGEM ALTERNADA.

ConcedidaInvention Patent

Application data

Number

PI8300526

Type

Invention Patent

Filing

02/03/1983

Publication

12/06/1983

Progress at the INPI

  1. Filing02/03/83
  2. Publication12/06/83
  3. Examination12/24/85
  4. Allowance08/25/87
  5. Grant05/31/88
  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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forschung e.V.

DE

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Inventors

S. R. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 3203478.4-32 · 02/03/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

12/15/1987

RPI 895

Deferimento

#9.1

08/25/1987

RPI 879

Exigência - art. 36 da LPI

#6.1

01/13/1987

RPI 847

Solicitação de exame técnico

#4.1

12/24/1985

RPI 792

Publicação do pedido de patente

#3.1

12/06/1983

RPI 685

Pedido de patente depositado

#2.1

03/22/1983

RPI 648

Carta-patente expirada

#21.1

Patente extinta em 03/02/98

07/01/2008

RPI 1956

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