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Official data from INPI

APERFEICOAMENTOS EM PNEUS PARA VEICULOS AGRICOLAS E INDUSTRIAIS

Em AnáliseInvention Patent

Application data

Number

PI7603133

Type

Invention Patent

Filing

05/22/1975

Publication

-

Progress at the INPI

  1. Filing05/22/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/24/82
  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: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PIRELLI

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Inventors

B. G. (pessoa física)

G. R. (pessoa física)

R. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/01/1989

RPI 980

Pedido de licença compulsória

#20.1

06/21/1983

RPI 661

16.3

04/27/1982

RPI 601

Concessão da patente

#16.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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