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Official data from INPI

VALVULA E INSTRUMENTO PARA MONTAR OU DESMONTAR O EQUIPAMENTO MOVEL DA VALVULA

Em AnáliseInvention Patent
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Application data

Number

PI7801520

Type

Invention Patent

Filing

03/11/1977

Publication

-
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Progress at the INPI

  1. Filing03/11/77
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant05/31/83
  6. Terminated06/29/93

The patent was granted on 05/31/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MICHELIN & CIE

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Inventors

L. J. (pessoa física)

Technical data

IPC Classification

B60C 25/18F16K 15/20

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.11

12/27/1988

RPI 949

20.4

10/25/1988

RPI 940

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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