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Official data from INPI

PROCESSO PARA OBTER ÓXIDO DE ALUMÍNIO.

ConcedidaInvention Patent
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Application data

Number

PI7801063

Type

Invention Patent

Filing

02/22/1978

Publication

-
View on INPI

Progress at the INPI

  1. Filing02/22/78
  2. Publication
  3. Examination
  4. Allowance08/16/83
  5. Grant03/27/84
  6. Terminated09/18/90

The patent was granted on 03/27/1984 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. S. (pessoa física)

Inventors

C. J. (pessoa física)

D. A. (pessoa física)

K. Z. (pessoa física)

W. B. (pessoa física)

Technical data

IPC Classification

C01F 7/18C04B 7/36C22B 21/00

Priority claims

PL

196.191 · 02/23/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/06/1983

RPI 685

Deferimento

#9.1

08/16/1983

RPI 669

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

08/17/1982

RPI 617

15.0

04/13/1982

RPI 599

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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