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Official data from INPI

PNEUS SEM CAMARA DE AR COM TALOES APERFEICOADOS

Em AnáliseInvention Patent

Application data

Number

PI7708130

Type

Invention Patent

Filing

12/13/1976

Publication

-

Progress at the INPI

  1. Filing12/13/76
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PIRELLI

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/15/1989

RPI 982

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

Exigência - art. 36 da LPI

#6.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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