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Official data from INPI

APERFEIÇOAMENTO EM BROZINA COM CAVIDADES LONGITUDINAIS ANTI-ATRITO

Arquivada/ExtintaUtility Model

Application data

Number

MU5800336

Type

Utility Model

Filing

03/20/1978

Publication

-

Progress at the INPI

  1. Filing03/20/78
  2. Publication
  3. Examination11/10/81
  4. Allowance03/08/83
  5. Grant01/31/84
  6. Expired08/16/88

The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. O. (pessoa física)

SP, BR

Inventors

O. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

16.3

04/17/1984

RPI 704

Concessão da patente

#16.1

01/31/1984

RPI 693

14.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/28/1983

RPI 662

Deferimento

#9.1

03/08/1983

RPI 646

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

Solicitação de exame técnico

#4.1

11/10/1981

RPI 577

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