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Official data from INPI

DISPOSITIVO DE VALVULA DE DRENAGEM DE CONDENSADO,ACIONADO ELETRICAMENTE

ConcedidaInvention Patent

Application data

Number

PI7907618

Type

Invention Patent

Filing

11/24/1978

Publication

-

Progress at the INPI

  1. Filing11/24/78
  2. Publication
  3. Examination09/14/82
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LOOMHURST LTD

Inventors

B. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Exigência - art. 36 da LPI

#6.1

04/12/1983

RPI 651

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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