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Official data from INPI

APERFEICOAMENTO EM VALVULA

Arquivada/ExtintaUtility Model

Application data

Number

MU5800247

Type

Utility Model

Filing

03/02/1978

Publication

-

Progress at the INPI

  1. Filing03/02/78
  2. Publication
  3. Examination
  4. Allowance09/14/82
  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.

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Latest action published by the INPI: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

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Inventors

C. P. (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

Pedido de licença compulsória

#20.1

02/20/1985

RPI 748

20.3

12/18/1984

RPI 739

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

110

09/06/1983

RPI 672

Recurso

#12.1

02/22/1983

RPI 644

Deferimento

#9.1

09/14/1982

RPI 621

Exigência - art. 36 da LPI

#6.1

03/02/1982

RPI 593

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