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Official data from INPI

PROCESSO PARA A PRECIPITAÇÃO DE AL (OH)3 A PARTIR DE UM LICOR VERDE SUPER-SATURADO.

ConcedidaInvention Patent

Application data

Number

PI8000338

Type

Invention Patent

Filing

01/18/1980

Publication

-

Progress at the INPI

  1. Filing01/18/80
  2. Publication
  3. Examination
  4. Allowance05/15/84
  5. Grant11/27/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUMINUM COMPANY OF AMERICA

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Inventors

F. W. (pessoa física)

H. L. (pessoa física)

S. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

004.326 · 01/18/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/15/1984

RPI 708

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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