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Official data from INPI

PNEUM,ÁTICO COM REVESTIMENTO DE ESTANQUEIDADE ESVULCANIZANTE EM CASO DE ESTOURO

Em AnáliseInvention Patent

Application data

Number

PI7904484

Type

Invention Patent

Filing

07/13/1979

Publication

-

Progress at the INPI

  1. Filing07/13/79
  2. Publication
  3. Examination04/27/82
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Expired04/18/95

The letters patent expired on 04/18/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

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

Applicants and inventors

Applicants

Michelin & Cie.

FR

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Inventors

C. J. (pessoa física)

C. A. (pessoa física)

Technical data

Priority claims

FR

78-21 346 · 07/13/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

10/25/1988

RPI 940

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

11/22/1983

RPI 683

Solicitação de exame técnico

#4.1

04/27/1982

RPI 601

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B60C 21/08; B60C 17/00; C08L 7/00; C08L 21/00; C08L 23/18; C08L 47/00; C08L 101/00; C09K 3/10.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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