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Official data from INPI

METODO E APARELHO PARA SUSTENTAR ELEMENTOS DE AQUECIMENTO ELETRICO EM UMA FORNALHA ISOLADA COM FIBRA CERAMICA

ConcedidaInvention Patent

Application data

Number

PI7801329

Type

Invention Patent

Filing

03/04/1977

Publication

-

Progress at the INPI

  1. Filing03/04/77
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant11/30/82
  6. Terminated06/29/93

The patent was granted on 11/30/1982 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SAUDER INDUSTRIES

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

Exigência - art. 36 da LPI

#6.1

12/22/1981

RPI 583

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

Pedido de licença compulsória

#20.1

02/26/1991

RPI 1056

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