Official data from INPI

USO DE UM AÇO DE BAIXA LIGA PARA PREPARAÇÃO DE ARAME DE VÁLVULA DE MOLA.

ConcedidaInvention Patent

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Application data

Number

PI7706281

Type

Invention Patent

Filing

09/20/1977

Publication

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Progress at the INPI

Filing09/20/77
Publication
Examination
Allowance07/19/83
Grant01/31/84
Terminated01/21/92

The patent was granted on 01/31/1984 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. B. (pessoa física)

Inventors

L. C. (pessoa física)

Technical data

IPC Classification

C22C 38/38

Priority claims

7610405-8 · 09/20/1976

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

02/09/1982

RPI 590

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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