Official data from INPI

COMBUSTÍVEL ETANOL E SEU USO COMO COMBUSTÍVEL DIESEL

Arquivada/ExtintaInvention PatentPCT · SE1989000055

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Application data

Number

PI8907250

Type

Invention Patent

Filing

02/10/1989

Publication

03/12/1991

PCT

SE1989000055

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Progress at the INPI

Filing02/10/89
Publication03/12/91
Examination10/15/91
Allowance08/18/98
Grant12/29/98
Expired12/18/12

The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/18/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Berol Nobel Stennungsund AB

Inventors

C. G. (pessoa física)

H. M. (pessoa física)

Technical data

IPC Classification

C10L 1/02 C10L 1/18

Priority claims

88005970 · 02/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/02/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Exigência - art. 36 da LPI

#6.1

07/16/1996

RPI 1337

Solicitação de exame técnico

#4.1

10/15/1991

RPI 1089

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1991

RPI 1058

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