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Official data from INPI

COMPOSIÇÃO LUBRIFICANTE COM APERFEIÇOADA DESEMULSIBILIDADE E CONCENTRADO PARA FORMULAR COMPOSIÇÕES DE ÓLEO LUBRIFICANTE

Arquivada/ExtintaInvention PatentPCT · US1989003628

Application data

Number

PI8907115

Type

Invention Patent

Filing

08/23/1989

Publication

02/05/1991

PCT

US1989003628

Progress at the INPI

  1. Filing08/23/89
  2. Publication02/05/91
  3. Examination03/24/92
  4. Allowance04/27/99
  5. Grant10/19/99
  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

T. C. (pessoa física)

US

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Inventors

J. S. (pessoa física)

US

J. V. (pessoa física)

US

Technical data

Priority claims

US

255,890 · 10/07/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/10/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

10/19/1999

RPI 1502

Deferimento

#9.1

04/27/1999

RPI 1477

Exigência - art. 36 da LPI

#6.1

11/18/1997

RPI 1407

Exigência - art. 36 da LPI

#6.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Notificação de entrada na fase nacional - PCT

#1.3

02/05/1991

RPI 1053

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