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

Processo para produção de um produto de argila de caulim

Arquivada/ExtintaInvention PatentPCT · US1990004793

Application data

Number

PI9007673

Type

Invention Patent

Filing

08/24/1990

Publication

06/02/1992

PCT

US1990004793

Progress at the INPI

  1. Filing08/24/90
  2. Publication06/02/92
  3. Examination06/15/93
  4. Allowance06/04/96
  5. Grant04/29/97
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Georgia Kaolin Company, Inc.

US

See this company's full portfolio

Inventors

K. M. (pessoa física)

US

Technical data

Priority claims

US

409.839 · 09/20/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/08/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

06/04/1996

RPI 1331

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

06/02/1992

RPI 1122

Patent monitoring

Track this patent in real time.

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