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

PROCESSO PARA FAZER ARTIGOS CILINDRICOS DE CERAMICA,FORNO PARA FIXAR ARTIGOS CILINDRICOS DE CERAMICA,E INSTALACAO PARA FAZER TUBOS DE CERAMICA

ConcedidaInvention Patent

Application data

Number

PI7903258

Type

Invention Patent

Filing

05/26/1978

Publication

-

Progress at the INPI

  1. Filing05/26/78
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HEPWORTH IRON CO LTD

Inventors

B. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

Patent monitoring

Track this patent in real time.

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