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Official data from INPI

PROCESSO PARA DETERMINAÇÃO DO NÚMERO DE OCTANAS OU OUTRA MEDIDA DE EVITAR-SE A AUTO-DETONAÇÃO DE UM COMBUSTÍVEL

Arquivada/ExtintaInvention PatentPCT · US1990004110

Application data

Number

PI9007626

Type

Invention Patent

Filing

07/20/1990

Publication

07/07/1992

PCT

US1990004110

Progress at the INPI

  1. Filing07/20/90
  2. Publication07/07/92
  3. Examination01/05/93
  4. Allowance07/11/95
  5. Grant08/27/96
  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

Ashland Oil, Inc

US

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Inventors

S. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

402.959 · 09/01/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/07/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

08/27/1996

RPI 1343

Notificação para pagamento de retribuição

#13.1

11/21/1995

RPI 1303

Deferimento

#9.1

07/11/1995

RPI 1284

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

01/05/1993

RPI 1153

Notificação de entrada na fase nacional - PCT

#1.3

07/07/1992

RPI 1127

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