(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISJUNTOR A GÁS COMPRIMIDO .

Em AnáliseInvention Patent

Application data

Number

PI8104731

Type

Invention Patent

Filing

07/22/1919

Publication

04/13/1982

Progress at the INPI

  1. Filing07/22/19
  2. Publication04/13/82
  3. Examination06/05/84
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Expired11/12/96

The letters patent expired on 11/12/1996: 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: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alsthom.

FR

ALSTHOM-ATLANTIQUE

See this company's full portfolio

Inventors

B. M. (pessoa física)

N. D. (pessoa física)

P. D. (pessoa física)

S. P. (pessoa física)

T. E. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 16 222 · 07/23/1980

FR

81 06 444 · 03/31/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

01/19/1988

RPI 900

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.