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Official data from INPI

FRICÇÃO MAGNÉTICA MULTIDISCO COM ROLAMENTO

ConcedidaInvention Patent
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Application data

Number

PI8000178

Type

Invention Patent

Filing

01/09/1980

Publication

-
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Progress at the INPI

  1. Filing01/09/80
  2. Publication
  3. Examination
  4. Allowance08/10/82
  5. Grant03/29/83
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unitec Transmissões, Equipamentos e Sinterização Ltda.

SP, BR

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Inventors

S. B. (pessoa física)

Technical data

IPC Classification

F16D 27/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Deferimento

#9.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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