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

PROCESSO PARA TRATAMENTO DE METAL FLUNDIDO

ConcedidaInvention Patent

Application data

Number

PI8300051

Type

Invention Patent

Filing

01/06/1983

Publication

09/20/1983

Progress at the INPI

  1. Filing01/06/83
  2. Publication09/20/83
  3. Examination11/13/84
  4. Allowance01/10/89
  5. Grant09/26/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aluminum Company Of America

US

See this company's full portfolio

Inventors

C. E. (pessoa física)

US

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

337.529 · 12/31/1900

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

08/15/1989

RPI 982

9.1.3

04/18/1989

RPI 965

Deferimento

#9.1

01/10/1989

RPI 951

Conhecimento de parecer técnico

#7.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

11/13/1984

RPI 734

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

Patente extinta em 06/01/98

07/01/2008

RPI 1956

Patent monitoring

Track this patent in real time.

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