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Official data from INPI

SISTEMA DE COMUNICAÇÃO PARA REDE TRIFÁSICA DE DISTRIBUIÇÃO DE ENERGIA ELÉTRICA

ConcedidaInvention Patent

Application data

Number

PI8201999

Type

Invention Patent

Filing

04/07/1982

Publication

03/15/1983

Progress at the INPI

  1. Filing04/07/82
  2. Publication03/15/83
  3. Examination05/14/85
  4. Allowance06/17/86
  5. Grant12/30/86
  6. Terminated07/18/95

The patent was granted on 12/30/1986 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

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Inventors

W. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

252.681 · 04/09/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

10/14/1986

RPI 834

Deferimento

#9.1

06/17/1986

RPI 817

Exigência - art. 36 da LPI

#6.1

11/26/1985

RPI 788

Solicitação de exame técnico

#4.1

05/14/1985

RPI 760

Publicação do pedido de patente

#3.1

03/15/1983

RPI 647

Pedido de patente depositado

#2.1

06/01/1982

RPI 606

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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