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Official data from INPI

REGULADOR DE GAS PARA USO DOMESTICO

ConcedidaInvention Patent

Application data

Number

PI7905670

Type

Invention Patent

Filing

08/31/1979

Publication

-

Progress at the INPI

  1. Filing08/31/79
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant02/22/83
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METAL YANES S A IND E COMERCIO

Inventors

H. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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