Official data from INPI

PROCESSO APERFEICOADO PARA PREPARAR ACIDO 7-AMINO-4-HIDROXI-NAFTALENO-SULFONICO

ArquivadaInvention Patent

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Application data

Number

PI7703898

Type

Invention Patent

Filing

06/15/1977

Publication

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Progress at the INPI

Filing06/15/77
Publication
Abandoned
Allowance
Grant
In force

The application was abandoned: examination was not requested within the 36 months following the 06/15/1977 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/01/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMERICAN CYANAMID CO

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Inventors

No inventors listed.

Technical data

IPC Classification

C07C 301/00 C07C 303/22 C07C 309/50 C07C 67/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

06/01/1982

RPI 606

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C07C 143/66.

03/27/2018

RPI 2464

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