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

PROCESSO PARA FABRICAR UMA VIGA DE PESO LEVE E ALTA RESISTÊNCIA A PARTIR DE UMA CHAPA FINA DE MATERIAL METÁLICO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006668

Type

Invention Patent

Filing

12/28/1990

Publication

10/01/1991

Progress at the INPI

  1. Filing12/28/90
  2. Publication10/01/91
  3. Examination06/02/92
  4. Allowance11/04/97
  5. Grant09/29/98
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wilian Holding Company

US

Inventors

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/461,352 · 01/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/12/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

09/29/1998

RPI 1449

Deferimento

#9.1

11/04/1997

RPI 1405

Conhecimento de parecer técnico

#7.1

11/05/1996

RPI 1353

6.2

02/27/1996

RPI 1317

Solicitação de exame técnico

#4.1

06/02/1992

RPI 1122

Publicação do pedido de patente

#3.1

10/01/1991

RPI 1087

Pedido de patente depositado

#2.1

06/25/1991

RPI 1073

Patent monitoring

Track this patent in real time.

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