Official data from INPI

APERFEICOAMENTO EM E REFERENTE A FLUIDOS TIPO EMULSAO AQUA-EMOLEO,APLICAVEIS NA PERFURACAO DE POCOS EM GERAL

Em AnáliseInvention Patent

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Application data

Number

PI7807858

Type

Invention Patent

Filing

11/29/1978

Publication

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Progress at the INPI

Filing11/29/78
Publication
Examination
Refused11/21/89
Grant
In force

The application was refused on 11/21/1989 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FLUIDELCO COMERCIO E IND PARA

Inventors

G. G. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

130

11/21/1989

RPI 996

Retificação

#15.3

08/02/1988

RPI 928

15.5

03/01/1988

RPI 906

Retificação

#15.6

12/08/1987

RPI 894

Alteração de numeração

#15.1

09/29/1987

RPI 884

Recurso

#12.1

02/12/1985

RPI 747

8.1

11/13/1984

RPI 734

Deferimento

#9.1

07/24/1984

RPI 718

11.8

07/17/1984

RPI 717

Arquivamento - Art. 36 §1° da LPI

#11.2

11/01/1983

RPI 680

8.1

03/22/1983

RPI 648

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