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Official data from INPI

COMPOSICOES A BASE DE ALQUENILSUCCINIMIDAS E SEUS PROCESSOS DE PREPARACAO

Em AnáliseInvention Patent

Application data

Number

PI7602289

Type

Invention Patent

Filing

04/18/1975

Publication

-

Progress at the INPI

  1. Filing04/18/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/26/83
  6. Terminated11/17/87

The patent was granted on 07/26/1983 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OROGIL

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Inventors

D. P. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/17/1987

RPI 891

Concessão da patente

#16.1

07/26/1983

RPI 666

110

05/03/1983

RPI 654

Recurso

#12.1

10/13/1981

RPI 573

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