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

PROCESSO DE FORMAÇÃO DE ELEMENTOS DE ESTRUTURA DE VIGA FECHADA

Em ExigênciaInvention Patent

Application data

Number

PI8504492

Type

Invention Patent

Filing

09/16/1985

Publication

12/16/1986

Progress at the INPI

  1. Filing09/16/85
  2. Publication12/16/86
  3. Examination01/19/88
  4. Allowance12/24/91
  5. Grant10/27/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Standard Tube Canada Inc

CA

Ti Corporate Services Limited

GB

Inventors

I. C. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

US

713.750 · 03/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

01/19/1988

RPI 900

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

11/19/1985

RPI 787

Carta-patente expirada

#21.1

Patente extinta em 16/09/2000

07/15/2008

RPI 1958

Pedido de licença compulsória

#20.1

03/26/1996

RPI 1321

Pedido de licença compulsória

#20.1

03/19/1996

RPI 1320

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

05/19/1992

RPI 1120

Republicação - classificação IPC

#15.11

04/07/1992

RPI 1114

Deferimento

#9.1

12/24/1991

RPI 1099

Exigência - art. 36 da LPI

#6.1

07/02/1991

RPI 1074

Exigência - art. 36 da LPI

#6.1

01/22/1991

RPI 1051

Patent monitoring

Track this patent in real time.

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