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Official data from INPI

CIRCUITO DE EXCITAÇÃO DE ENERGIA CONSTANTE PARA MARTELOS DE IMPRESSÃO ELETROMAGNÉTICOS

ConcedidaInvention Patent
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Application data

Number

PI8203144

Type

Invention Patent

Filing

05/28/1982

Publication

05/17/1983
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Progress at the INPI

  1. Filing05/28/82
  2. Publication05/17/83
  3. Examination05/07/85
  4. Allowance08/25/87
  5. Grant02/23/88
  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.

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Latest action published by the INPI: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

R. A. (pessoa física)

US

Technical data

IPC Classification

H01H 47/32

Priority claims

US

274,933 · 06/18/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

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

11/25/1986

RPI 840

Exigência - art. 36 da LPI

#6.1

02/25/1986

RPI 801

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

05/17/1983

RPI 656

Pedido de patente depositado

#2.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

Patente extinta em 28/05/97

07/01/2008

RPI 1956

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