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Official data from INPI

APARELHO PARA DETECTAR O POTENCIAL EM UMA SUPERFICIE E DEPOSITAR OU REMOVER PARTICULAS DELA, E MAQUINA DE IMPRESSAO ELETROFOTOGRAFICA

ConcedidaInvention Patent

Application data

Number

PI8302878

Type

Invention Patent

Filing

06/28/1982

Publication

04/17/1984

Progress at the INPI

  1. Filing06/28/82
  2. Publication04/17/84
  3. Examination06/25/85
  4. Allowance09/23/86
  5. Grant03/31/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

XEROX CORP [US]

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Inventors

F. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

02/17/1987

RPI 852

Deferimento

#9.1

09/23/1986

RPI 831

Exigência - art. 36 da LPI

#6.1

01/14/1986

RPI 795

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

Patente extinta em 30/05/98

08/19/2008

RPI 1963

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