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Official data from INPI

Processo para a obtenção e re - aplicação de catalisador de oxidação de metais pesados a partir de resíuos no proceso de DMT de witten.

ConcedidaInvention Patent

Application data

Number

PI8107823

Type

Invention Patent

Filing

12/01/1981

Publication

09/08/1982

Progress at the INPI

  1. Filing12/01/81
  2. Publication09/08/82
  3. Examination10/30/84
  4. Allowance10/13/87
  5. Grant05/31/88
  6. In force12/01/01

The patent was granted on 05/31/1988 and is in force until 12/01/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:12/01/2001

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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

D. A. (pessoa física)

DE

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Inventors

B. H. (pessoa física)

C. R. (pessoa física)

H. G. (pessoa física)

Technical data

Priority claims

DE

P 3045332.8 · 12/02/1980

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

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Republicação - classificação IPC

#15.11

09/15/1987

RPI 882

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Exigência - art. 36 da LPI

#6.1

07/16/1985

RPI 769

Solicitação de exame técnico

#4.1

10/30/1984

RPI 732

Publicação do pedido de patente

#3.1

09/08/1982

RPI 620

Pedido de patente depositado

#2.1

01/12/1982

RPI 586

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