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Official data from INPI

DISPOSITIVO DE RECAUCHUTAGEM DE PNEUMATICOS

Em AnáliseInvention Patent
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Application data

Number

PI7800364

Type

Invention Patent

Filing

01/20/1977

Publication

-
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Progress at the INPI

  1. Filing01/20/77
  2. Publication
  3. Examination
  4. Allowance12/01/81
  5. Grant05/31/83
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MICHELIN & CIE

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Inventors

B. E. (pessoa física)

Technical data

IPC Classification

B29H 17/36

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/22/1988

RPI 944

Concessão da patente

#16.1

05/31/1983

RPI 658

11.8

02/22/1983

RPI 644

Arquivamento - Art. 38 §2° da LPI

#11.4

12/28/1982

RPI 636

Notificação para pagamento de retribuição

#13.1

04/13/1982

RPI 599

Deferimento

#9.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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