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Official data from INPI

PROCESSO PARA EXTRACAO DE CROMO E PROTEINAS DE RESIDUOS DE CURTIMENTO

ConcedidaInvention Patent
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Application data

Number

PI8300450

Type

Invention Patent

Filing

02/02/1982

Publication

11/01/1983
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Progress at the INPI

  1. Filing02/02/82
  2. Publication11/01/83
  3. Examination01/08/85
  4. Allowance10/06/87
  5. Grant05/31/88
  6. Terminated02/18/92

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

GUARDINI GIULIANO [IT]

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

C14C 3/32

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

10/06/1987

RPI 885

Republicação - classificação IPC

#15.11

06/23/1987

RPI 870

Exigência - art. 36 da LPI

#6.1

06/10/1986

RPI 816

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Solicitação de exame técnico

#4.1

01/08/1985

RPI 742

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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