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

APERFEICOAMENTO EM PROCESSO E DISPOSITIVO PARA A ALIMENTACAO EM CORRENTE ELETRICA DE CUBAS DE ELETROLISE IGNEA COLOCADAS TRANSVERSALMENTE

ConcedidaInvention Patent

Application data

Number

PI7601930

Type

Invention Patent

Filing

09/18/1975

Publication

-

Progress at the INPI

  1. Filing09/18/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 12/29/1981. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. A. (pessoa física)

See this company's full portfolio

Inventors

D. J. (pessoa física)

M. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

Patent monitoring

Track this patent in real time.

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