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Official data from INPI

COMPOSICOES E PROCESSOS PARA INIBIR A FORMACAO DE PLACA

IndeferidaInvention Patent

Application data

Number

PI7808731

Type

Invention Patent

Filing

12/28/1978

Publication

-

Progress at the INPI

Under appeal
  1. Filing12/28/78
  2. Publication
  3. Examination03/09/82
  4. Refused04/05/83
  5. Grant
  6. In force

The application was refused by the INPI on 04/05/1983. The invention was never patented.

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Latest action published by the INPI: 04/05/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/05/1983

RPI 650

Solicitação de exame técnico

#4.1

03/09/1982

RPI 594

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: A61K 7/22; A61K 31/14; A61K 31/695.

03/27/2018

RPI 2464

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