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

PROCESSO DE FABRICAÇÃO DE AGLOMERADO AUTO-REDUTOR, A PARTIR DE RESÍDUOS SÓLIDOS

Em AnáliseInvention Patent
Talk to an expert

Application data

Number

PI8502279

Type

Invention Patent

Filing

05/15/1985

Publication

08/06/1985
View on INPI

Progress at the INPI

  1. Filing05/15/85
  2. Publication08/06/85
  3. Examination12/24/85
  4. Allowance04/23/91
  5. Grant03/26/91
  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: 12/24/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sobremetal Recuperação de Metais Ltda

RJ, BR

Inventors

P. K. (pessoa física)

BR

Technical data

IPC Classification

C22B 1/242

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/24/1985

RPI 792

Publicação antecipada

#3.2

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

07/16/1985

RPI 769

Carta-patente expirada

#21.1

Patente extinta em 15/05/2000

07/15/2008

RPI 1958

20.4

10/27/1992

RPI 1143

Deferimento (variante)

#9.1.2

05/28/1991

RPI 1069

Deferimento

#9.1

04/23/1991

RPI 1064

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/11/1990

RPI 1045

Deferimento

#9.1

08/28/1990

RPI 1030

Exigência - art. 36 da LPI

#6.1

03/13/1990

RPI 1009

Related

Patent monitoring

Track this patent in real time.

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