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

"PROCESSO PARA PREPARAÇÃO DE COMPOSIÇÃO DE TIOCARBONATO ESTABILIZADA"

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905431

Type

Invention Patent

Filing

10/25/1989

Publication

05/22/1990

Progress at the INPI

  1. Filing10/25/89
  2. Publication05/22/90
  3. Examination09/01/92
  4. Allowance12/15/98
  5. Grant06/29/99
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Oil Company of California

US

See this company's full portfolio

Inventors

D. Y. (pessoa física)

US

J. I. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

262.961 · 10/28/1988

US

262.962 · 10/28/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 25/10/2009

12/26/2012

RPI 2190

22.2

Desconhecida a Petição nº 025167/RJ de 15/05/2002, uma vez que a Patente expirou em 29/06/2009.

12/13/2011

RPI 2136

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

12/15/1998

RPI 1458

Exigência - art. 36 da LPI

#6.1

05/12/1998

RPI 1429

Exigência - art. 36 da LPI

#6.1

01/16/1996

RPI 1311

Solicitação de exame técnico

#4.1

09/01/1992

RPI 1135

Publicação do pedido de patente

#3.1

05/22/1990

RPI 1019

Pedido de patente depositado

#2.1

04/03/1990

RPI 1012

Related

From the same holder

Patent monitoring

Track this patent in real time.

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