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Official data from INPI

MISTURAS DE ACLARADORES OTICOS,E SUA APLICACAO

ArquivadaInvention Patent

Application data

Number

PI7802937

Type

Invention Patent

Filing

05/11/1977

Publication

-

Progress at the INPI

  1. Filing05/11/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant10/25/83
  6. Terminated05/02/84

The patent was granted on 10/25/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/02/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

E. R. (pessoa física)

G. D. (pessoa física)

P. H. (pessoa física)

R. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

05/02/1984

RPI 706

Concessão da patente

#16.1

10/25/1983

RPI 679

Exigência - art. 36 da LPI

#6.1

10/04/1983

RPI 676

6.2

12/01/1981

RPI 580

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