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Official data from INPI

PROCESSO CONTÍNUO DE FERMENTAÇÃO DE AÇÚCARES PARA PRODUÇÃO DE ÁLCOOL

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905809

Type

Invention Patent

Filing

11/17/1989

Publication

05/21/1991

Progress at the INPI

  1. Filing11/17/89
  2. Publication05/21/91
  3. Examination08/06/91
  4. Allowance11/29/94
  5. Grant07/25/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Engenho Novo Tecnologia Agroindustrial Ltda

RJ, BR

Inventors

C. V. (pessoa física)

BR

R. Z. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/11/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

04/04/1995

RPI 1270

Deferimento

#9.1

11/29/1994

RPI 1252

14.7

04/20/1993

RPI 1168

Solicitação de exame técnico

#4.1

08/06/1991

RPI 1079

Publicação do pedido de patente

#3.1

05/21/1991

RPI 1068

Pedido de patente depositado

#2.1

04/17/1990

RPI 1014

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