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Official data from INPI

APLICACAO DE BIS-AMIDAS DO ACIDO QUADRATICO

Em AnáliseInvention Patent

Application data

Number

PI7705692

Type

Invention Patent

Filing

08/28/1976

Publication

-

Progress at the INPI

  1. Filing08/28/76
  2. Publication
  3. Examination
  4. Allowance10/11/83
  5. Grant04/24/84
  6. Terminated12/15/87

The patent was granted on 04/24/1984 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HUELS CHEMISCHE WERKE AG

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Inventors

B. H. (pessoa física)

G. A. (pessoa física)

H. P. (pessoa física)

M. G. (pessoa física)

R. K. (pessoa física)

S. H. (pessoa física)

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

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

01/24/1984

RPI 692

Deferimento

#9.1

10/11/1983

RPI 677

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

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