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Official data from INPI

PROCESSO DE FABRICACAO DE ACIDO HUMICO A PARTIR DO LINHITO

ConcedidaInvention Patent
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Application data

Number

PI8302036

Type

Invention Patent

Filing

04/20/1983

Publication

11/20/1984
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Progress at the INPI

  1. Filing04/20/83
  2. Publication11/20/84
  3. Examination03/19/85
  4. Allowance08/11/87
  5. Grant05/31/88
  6. Terminated04/25/95

The patent was granted on 05/31/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. S. (pessoa física)

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

C05F 11/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

12/03/1985

RPI 789

Solicitação de exame técnico

#4.1

03/19/1985

RPI 752

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

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