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Official data from INPI

MISTURA REVELADORA ELETROSTATOGRAFICA E PROCESSO PARA FORMACAO DE IMAGEM ELETROSTATOGRAFICA

ConcedidaInvention Patent

Application data

Number

PI7901932

Type

Invention Patent

Filing

04/06/1978

Publication

-

Progress at the INPI

  1. Filing04/06/78
  2. Publication
  3. Examination12/15/81
  4. Allowance05/17/88
  5. Grant10/25/88
  6. Terminated09/25/90

The patent was granted on 10/25/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

XEROX CORP

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Inventors

V. S. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1988

RPI 940

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Exigência - art. 36 da LPI

#6.1

06/07/1983

RPI 659

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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