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Official data from INPI

PROCESSOS PARA PREPARAR COMPOSTOS DE POLIAMINA E COMPOSICAO PARA INIBIR O DESENVOLVIMENTO DE MICRORGANISMOS E ALGAS

ConcedidaInvention Patent

Application data

Number

PI7605595

Type

Invention Patent

Filing

09/02/1975

Publication

-

Progress at the INPI

  1. Filing09/02/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/15/81
  6. Terminated10/23/90

The patent was granted on 12/15/1981 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/15/1981. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MERCK & CO INC

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Inventors

D. R. (pessoa física)

G. N. (pessoa física)

W. B. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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