(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISPOSITIVO E PROCESSO PARA CONTROLAR A SUPERFÍCIE DA CARGA DE UM FORNO COM CUBA.

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI7907932

Type

Invention Patent

Filing

12/05/1979

Publication

-
View on INPI

Progress at the INPI

  1. Filing12/05/79
  2. Publication
  3. Examination09/08/82
  4. Allowance02/14/84
  5. Grant04/30/85
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centre de Recherches Metallurgiques, Centrum Voor Research in de Metallurgie

Inventors

P. R. (pessoa física)

Technical data

IPC Classification

C21B 7/24F27B 1/26

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

04/05/1983

RPI 650

Solicitação de exame técnico

#4.1

09/08/1982

RPI 620

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

Related

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.