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

APERFEICOAMENTOS RELATIVOS A UM PROCESSO DE TRATAMENTO DE CHAPAS DE IMPRESSAO

ConcedidaInvention Patent

Application data

Number

PI7504303

Type

Invention Patent

Filing

07/08/1974

Publication

-

Progress at the INPI

  1. Filing07/08/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant03/30/82
  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: 03/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VICKERS LTD

See this company's full portfolio

Inventors

W. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/30/1982

RPI 597

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.