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Official data from INPI

Alimentação das colunas de destilação, retificação e desidratação.

ConcedidaInvention Patent
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Application data

Number

PI8007749

Type

Invention Patent

Filing

11/27/1980

Publication

-
View on INPI

Progress at the INPI

  1. Filing11/27/80
  2. Publication
  3. Examination
  4. Allowance06/14/88
  5. Grant11/29/88
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Codistil S.A - Denini

SP, BR

Construtora de Distilarias Dedini S/a

SP, BR

Inventors

G. N. (pessoa física)

Technical data

IPC Classification

C12F 1/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

14.11

03/15/1988

RPI 908

14.4

01/26/1988

RPI 901

14.4

01/19/1988

RPI 900

14.1

01/12/1988

RPI 899

Exigência - art. 36 da LPI

#6.1

10/06/1987

RPI 885

15.8

10/21/1986

RPI 835

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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