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Official data from INPI

Processo para o recebimento, armazenagem e manipulação de hidarto úmido de hidróxido de alumínio.

Em AnáliseInvention Patent

Application data

Number

PI8004256

Type

Invention Patent

Filing

07/09/1980

Publication

-

Progress at the INPI

  1. Filing07/09/80
  2. Publication
  3. Examination07/27/82
  4. Allowance
  5. Grant04/30/85
  6. Terminated02/04/92

The patent was granted on 04/30/1985 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: 10/08/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. R. (pessoa física)

DE

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Inventors

C. H. (pessoa física)

D. E. (pessoa física)

R. H. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

56 692 · 07/11/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

10/08/1985

RPI 781

Concessão da patente

#16.1

04/30/1985

RPI 758

Arquivamento - Art. 36 §1° da LPI

#11.2

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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