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Official data from INPI

PROCESSO PARA A REMOCAO DE RESIDUOS DE SOLVENTE DE EPSILON-CAPROLACTAMA CRISTALIZADA

Em AnáliseInvention Patent

Application data

Number

PI7706120

Type

Invention Patent

Filing

09/15/1976

Publication

-

Progress at the INPI

  1. Filing09/15/76
  2. Publication
  3. Examination
  4. Allowance08/03/82
  5. Grant02/22/83
  6. Terminated12/15/87

The patent was granted on 02/22/1983 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

D. H. (pessoa física)

D. L. (pessoa física)

K. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

12/14/1982

RPI 634

Deferimento

#9.1

08/03/1982

RPI 615

Exigência - art. 36 da LPI

#6.1

11/10/1981

RPI 577

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