Official data from INPI

PROCESSO DE MONTAGEM DE BROCA PARA ROCHAS

Em AnáliseInvention Patent

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Application data

Number

PI7705570

Type

Invention Patent

Filing

02/28/1977

Publication

View on INPI

Progress at the INPI

Filing02/28/77
Publication
Examination
Allowance
Grant06/29/82
Terminated03/20/84

The patent was granted on 06/29/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/20/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HUGHES TOOL CO

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Inventors

B. G. (pessoa física)

M. R. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

03/20/1984

RPI 700

Concessão da patente

#16.1

06/29/1982

RPI 610

Notificação para pagamento de retribuição

#13.1

11/03/1981

RPI 576

15.0