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

REATOR DE REFINO DE LIGAS E METAIS NO ESTADO LÍQUIDO DE REVESTIMENTO REFRATÁRIO SILICOSO

Arquivada/ExtintaInvention Patent
Talk to an expert

Application data

Number

PI9000890

Type

Invention Patent

Filing

02/20/1990

Publication

10/15/1991
View on INPI

Progress at the INPI

  1. Filing02/20/90
  2. Publication10/15/91
  3. Examination12/28/93
  4. Allowance07/13/99
  5. Grant02/08/00
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas de São Paulo S/A - IPT

SP, BR

See this company's full portfolio

Inventors

E. P. (pessoa física)

BR

J. N. (pessoa física)

BR

Technical data

IPC Classification

C22C 35/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/02/2010

01/02/2013

RPI 2191

Concessão da patente

#16.1

02/08/2000

RPI 1518

Deferimento

#9.1

07/13/1999

RPI 1488

Solicitação de exame técnico

#4.1

05/24/1994

RPI 1225

Solicitação de exame técnico

#4.1

12/28/1993

RPI 1204

Publicação do pedido de patente

#3.1

10/15/1991

RPI 1089

Pedido de patente depositado

#2.1

06/26/1990

RPI 1024

Related

Patent monitoring

Track this patent in real time.

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