Official data from INPI

FILTRO-SECADOR EM DUAS VIAS PARA SISTEMAS DE BOMBAS DE CALOR

ArquivadaInvention Patent

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Application data

Number

PI7902688

Type

Invention Patent

Filing

05/03/1978

Publication

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Progress at the INPI

Filing05/03/78
Publication
Examination
Allowance05/18/82
Abandoned
In force

The application was allowed on 05/18/1982 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 07/12/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VIRGINIA CHEMICALS INC

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

07/12/1983

RPI 664

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/18/1982

RPI 604

From the same holder

APERFEICOAMENTO EM PROCESSO DE PRODUCAO DE DITIONITO DE SODIO A PARTIR DE DIOXIDO DE ENXOFRE,FORMIATO DE SODIO E CARBONATO DE SODIO COM UM MINIMO DE SOLVENTE

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