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Official data from INPI

PNEUMATICO COM GUARNICAO DE PRODUTO OBTURADOR DE PRESSAO

Em AnáliseInvention Patent
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Application data

Number

PI7902880

Type

Invention Patent

Filing

05/10/1978

Publication

-
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Progress at the INPI

  1. Filing05/10/78
  2. Publication
  3. Examination02/09/82
  4. Allowance03/27/84
  5. Grant10/30/84
  6. Expired07/26/94

The letters patent expired on 07/26/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MICHELIN & CIE

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Inventors

B. M. (pessoa física)

C. A. (pessoa física)

Technical data

IPC Classification

B60C 9/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

10/25/1988

RPI 940

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

07/17/1984

RPI 717

Deferimento

#9.1

03/27/1984

RPI 701

Exigência - art. 36 da LPI

#6.1

10/18/1983

RPI 678

Republicação - classificação IPC

#15.11

07/26/1983

RPI 666

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

Solicitação de exame técnico

#4.1

02/09/1982

RPI 590

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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