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Official data from INPI

COMPOSICAO PARA A VEDACAO DE FUROS,PNEU SEM CAMARA E PROCESSO PARA VEDAR FUROS

ConcedidaInvention Patent

Application data

Number

PI7601441

Type

Invention Patent

Filing

03/12/1975

Publication

-

Progress at the INPI

  1. Filing03/12/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/28/83
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIROYAL INC

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Inventors

F. M. (pessoa física)

L. F. (pessoa física)

P. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

11.8

06/14/1983

RPI 660

Arquivamento - Art. 38 §2° da LPI

#11.4

02/22/1983

RPI 644

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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