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Official data from INPI

AMORTECEDOR DE VIBRACAO TORCIONAL

Em AnáliseInvention Patent

Application data

Number

PI7903139

Type

Invention Patent

Filing

05/22/1978

Publication

-

Progress at the INPI

  1. Filing05/22/78
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant08/30/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 06/04/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WALLACE MURRAY CORP

See this company's full portfolio

Inventors

B. R. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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