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

SISTEMA PARA RECUPERAÇÃO DE ENERGIA EM FORNOS CONTÍNUOS DE REAQUECIMENTO DE CALOR DE PLACAS

PublicadaInvention Patent

Application data

Number

PI8500835

Type

Invention Patent

Filing

02/26/1985

Publication

09/30/1986

Progress at the INPI

  1. Filing02/26/85
  2. Publication09/30/86
  3. Examination04/02/91
  4. Allowance02/11/92
  5. Grant11/24/92
  6. Terminated05/21/96

The patent was granted on 11/24/1992 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - Usiminas

MG, BR

See this company's full portfolio

Inventors

F. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.6

10/11/1988

RPI 938

Retificação

#15.3

05/31/1988

RPI 919

Publicação do pedido de patente

#3.1

09/30/1986

RPI 832

Pedido de patente depositado

#2.1

05/14/1985

RPI 760

Anuidade - prazo legal encerrado

#18.2

05/21/1996

RPI 1329

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

07/28/1992

RPI 1130

Deferimento

#9.1

02/11/1992

RPI 1106

Solicitação de exame técnico

#4.1

04/02/1991

RPI 1061

Patent monitoring

Track this patent in real time.

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