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

ELEMENTO ABRASIVO

Prazo de SigiloInvention Patent

Application data

Number

PI8804751

Type

Invention Patent

Filing

09/14/1988

Publication

05/08/1990

Progress at the INPI

  1. Filing09/14/88
  2. Publication05/08/90
  3. Examination10/09/90
  4. Allowance07/13/93
  5. Grant02/16/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. K. (pessoa física)

SP, BR

Inventors

W. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

02/14/1989

RPI 956

Carta-patente expirada

#21.1

Patente extinta em 14/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

02/16/1994

RPI 1211

Notificação para pagamento de retribuição

#13.1

08/17/1993

RPI 1185

100

07/13/1993

RPI 1180

120

02/09/1993

RPI 1158

Petição de recurso

#12.2

08/06/1991

RPI 1079

Indeferimento

#9.2

04/30/1991

RPI 1065

Solicitação de exame técnico

#4.1

10/09/1990

RPI 1036

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Patent monitoring

Track this patent in real time.

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