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Official data from INPI

CALDEIRA PARA UM FORNO DE ARCO VOLTAICO

ConcedidaInvention Patent

Application data

Number

PI7903996

Type

Invention Patent

Filing

06/27/1978

Publication

-

Progress at the INPI

  1. Filing06/27/78
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant02/22/83
  6. Terminated09/25/90

The patent was granted on 02/22/1983 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC BROWN BOVERI & CIE

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Inventors

B. U. (pessoa física)

B. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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