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Official data from INPI

PROCESSO PARA AQUECER UMA CAMADA DE SUPERFICIE DELGADA DE UM SUBSTRATO DIELETRICO MAIS ESPESSO

Em AnáliseInvention Patent

Application data

Number

PI8006883

Type

Invention Patent

Filing

11/02/1979

Publication

-

Progress at the INPI

  1. Filing11/02/79
  2. Publication
  3. Examination07/26/83
  4. Allowance08/14/84
  5. Grant02/26/85
  6. Terminated09/26/89

The patent was granted on 02/26/1985 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

J. C. (pessoa física)

K. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/14/1984

RPI 721

Republicação - classificação IPC

#15.11

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

07/26/1983

RPI 666

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