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Official data from INPI

PNEUMATICO DE MATERIAL ELASTICO SEM ARMACAO

Em AnáliseInvention Patent
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Application data

Number

PI7901138

Type

Invention Patent

Filing

02/21/1978

Publication

-
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Progress at the INPI

  1. Filing02/21/78
  2. Publication
  3. Examination11/24/81
  4. Allowance06/05/84
  5. Grant04/30/85
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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

H. Y. (pessoa física)

Technical data

IPC Classification

B29H 17/00B60C 5/04B60C 9/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

10/25/1988

RPI 940

16.4

05/28/1985

RPI 762

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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