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

APERFEICOAMENTO EM PROCESSO PARA CONSERTAR E PROLONGAR A DURACAO DE FORNOS REFRATORIOS BASICOS DE RECIPIENTES METALURGICOS

ConcedidaInvention Patent

Application data

Number

PI7706269

Type

Invention Patent

Filing

09/27/1976

Publication

-

Progress at the INPI

  1. Filing09/27/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 07/27/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

QUIGLEY CO

Inventors

D. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

Patent monitoring

Track this patent in real time.

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