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Official data from INPI

MEMBRANA ANISOTRÓPICA APERFEIÇOADA E PROCESSO PARA A PREPARAÇÃO DE MEMBRANAS INTEGRAIS, ALTAMENTE ASSIMÉTRICAS.

IndeferidaInvention Patent

Application data

Number

PI8101508

Type

Invention Patent

Filing

03/13/1981

Publication

-

Progress at the INPI

Under appeal
  1. Filing03/13/81
  2. Publication
  3. Examination02/02/82
  4. Refused03/10/87
  5. Grant
  6. In force

The application was refused by the INPI on 03/10/1987. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

No inventors listed.

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

03/10/1987

RPI 855

Conhecimento de parecer técnico

#7.1

05/02/1984

RPI 706

Solicitação de exame técnico

#4.1

02/02/1982

RPI 589

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 13/04; B01D 69/10; B01D 71/28; B01D 71/34; B01D 71/42; B01D 71/56; B01D 71/68; B32B 5/14; B32B 27/30; B32B 27/36; C08J 9/28; C08J 9/00.

03/20/2018

RPI 2463

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