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Official data from INPI

PROCESSO PARA A PREPARACAO DE DI-METILESTER DE ACIDO N,N-BIS-(2HIDROXIALQUIL)-AMINO-METANOSFOSFONICO

Em AnáliseInvention Patent

Application data

Number

PI7807412

Type

Invention Patent

Filing

11/11/1977

Publication

-

Progress at the INPI

  1. Filing11/11/77
  2. Publication
  3. Examination
  4. Allowance08/02/83
  5. Grant01/31/84
  6. Terminated06/14/88

The patent was granted on 01/31/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

K. M. (pessoa física)

M. K. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

Deferimento

#9.1

08/02/1983

RPI 667

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

6.2

04/06/1982

RPI 598

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