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Official data from INPI

PROCESSO E METODO PURIFICATIVOS DAS AGUAS SERVIDAS, NAS INDUSTRIAS QUIMICAS ORGANICAS, PRINCIPALMENTE DAS AGROINDUSTRIAIS, MEDIANTE A UTILIZACAO DE MICROORGANISMOS SIMBIONTICOS

ConcedidaInvention Patent

Application data

Number

PI8001422

Type

Invention Patent

Filing

03/11/1980

Publication

-

Progress at the INPI

  1. Filing03/11/80
  2. Publication
  3. Examination11/01/83
  4. Allowance07/08/86
  5. Grant06/30/87
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. K. (pessoa física)

Inventors

M. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Conhecimento de parecer técnico

#7.1

05/29/1984

RPI 710

Solicitação de exame técnico

#4.1

11/01/1983

RPI 680

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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