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

RETENTOR APERFEIÇOADO PARA REGISTRO DE GÁS EM TUBULAÇÃO DE GÁS.

ConcedidaInvention Patent

Application data

Number

PI8405431

Type

Invention Patent

Filing

10/25/1984

Publication

06/03/1986

Progress at the INPI

  1. Filing10/25/84
  2. Publication06/03/86
  3. Examination12/16/86
  4. Allowance
  5. Grant08/30/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imar Indústria Metalúrgica Ltda

SP, BR

See this company's full portfolio

Inventors

J. A. (pessoa física)

BR

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

12/16/1986

RPI 843

Publicação do pedido de patente

#3.1

06/03/1986

RPI 815

Pedido de patente depositado

#2.1

01/08/1985

RPI 742

Carta-patente expirada

#21.1

Patente extinta em 25/10/99

07/08/2008

RPI 1957

Patent monitoring

Track this patent in real time.

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