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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE ETANOL POR FERMENTAÇÃO CONTÍNUA

ConcedidaInvention Patent

Application data

Number

PI7900321

Type

Invention Patent

Filing

01/18/1979

Publication

-

Progress at the INPI

  1. Filing01/18/79
  2. Publication
  3. Examination
  4. Allowance10/06/87
  5. Grant08/29/89
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfa-Laval AB

SE

See this company's full portfolio

Inventors

L. E. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

7801133-5 · 01/31/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

110

04/18/1989

RPI 965

121

11/22/1988

RPI 944

Recurso

#12.1

02/09/1988

RPI 903

Deferimento

#9.1

10/06/1987

RPI 885

Exigência - art. 36 da LPI

#6.1

10/15/1985

RPI 782

6.2

05/04/1982

RPI 602

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C12C 11/14.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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