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Official data from INPI

COMPOSICAO FOTOSSENSIVEL E ELEMENTO FOTO-RESISTOR

ConcedidaInvention Patent
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Application data

Number

PI8103185

Type

Invention Patent

Filing

05/27/1980

Publication

02/09/1982
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Progress at the INPI

  1. Filing05/27/80
  2. Publication02/09/82
  3. Examination12/27/83
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Terminated02/04/92

The patent was granted on 11/29/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

F. W. (pessoa física)

P. Y. (pessoa física)

Technical data

IPC Classification

C08F 110/00G03F 7/033H01L 21/02H01L 21/027H05K 3/00H05K 3/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

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

09/29/1987

RPI 884

Conhecimento de parecer técnico

#7.1

01/02/1985

RPI 741

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

02/09/1982

RPI 590

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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