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Official data from INPI

CAPACITOR ELÉTRICO COMBINADO E FLUIDO DIELÉTRICO DE POLIGLICOL PARA CAPACITOR.

ConcedidaInvention Patent

Application data

Number

PI8200973

Type

Invention Patent

Filing

02/17/1982

Publication

01/04/1983

Progress at the INPI

  1. Filing02/17/82
  2. Publication01/04/83
  3. Examination02/20/85
  4. Allowance10/27/87
  5. Grant05/31/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

S. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

235.810 · 02/19/1981

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

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Publicação do pedido de patente

#3.1

01/04/1983

RPI 637

Pedido de patente depositado

#2.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

Patente extinta em 17/02/97

07/01/2008

RPI 1956

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