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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7404530

Type

Invention Patent

Filing

05/31/1974

Publication

-

Progress at the INPI

  1. Filing05/31/74
  2. Publication
  3. Examination
  4. Allowance04/20/82
  5. Grant10/26/82
  6. Expired08/25/92

The letters patent expired on 08/25/1992: 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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Michelin & Cie (Compagnie Générale des Etablissements MICHELIN)

FR

See this company's full portfolio

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

09/02/1986

RPI 828

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

08/10/1982

RPI 616

Deferimento

#9.1

04/20/1982

RPI 600

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B60C 11/06.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

08/25/1992

RPI 1134

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