Official data from INPI

COMPOSIÇÃO DIELÉTRICA CERÂMICA, CAPACITOR CERÂMICO E PROCESSO DE SUA FABRICAÇÃO.

ConcedidaInvention Patent

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Application data

Number

PI8104117

Type

Invention Patent

Filing

06/29/1981

Publication

03/16/1982

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Progress at the INPI

Filing06/29/81
Publication03/16/82
Examination08/23/83
Allowance10/27/87
Grant05/31/88
Terminated09/13/94

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centralab Inc.

Inventors

D. T. (pessoa física)

Technical data

IPC Classification

H01G 4/12

Priority claims

164.419 · 06/30/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

03/16/1982

RPI 595

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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