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Official data from INPI

PROCESSO INTEGRADO PARA LAMINACAO DE UMA CAMADA CONTINUA DE COMPOSICAO FOTOSSENSIVEL

ConcedidaInvention Patent

Application data

Number

PI8103223

Type

Invention Patent

Filing

03/27/1981

Publication

02/16/1982

Progress at the INPI

  1. Filing03/27/81
  2. Publication02/16/82
  3. Examination12/27/83
  4. Allowance12/11/84
  5. Grant05/28/85
  6. Terminated09/25/90

The patent was granted on 05/28/1985 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

J. B. (pessoa física)

P. Y. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Republicação - classificação IPC

#15.11

05/07/1985

RPI 759

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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