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Official data from INPI

APERFEIÇOAMENTO EM TOMADAS DE ENERGIA ELÉTRICA

ConcedidaInvention Patent

Application data

Number

PI8007546

Type

Invention Patent

Filing

11/19/1980

Publication

11/03/1981

Progress at the INPI

  1. Filing11/19/80
  2. Publication11/03/81
  3. Examination01/25/83
  4. Allowance08/09/83
  5. Grant02/28/84
  6. Terminated08/09/94

The patent was granted on 02/28/1984 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

S. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/29/1983

RPI 684

Republicação - classificação IPC

#15.11

09/13/1983

RPI 673

Deferimento

#9.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

01/25/1983

RPI 640

Publicação antecipada

#3.2

11/03/1981

RPI 576

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

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