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

VALVULA DE SEDE DUPLA,COM CONTROLE DE VAZAMENTO

Em AnáliseInvention Patent

Application data

Number

PI8102956

Type

Invention Patent

Filing

08/16/1980

Publication

08/24/1982

Progress at the INPI

  1. Filing08/16/80
  2. Publication08/24/82
  3. Examination03/01/83
  4. Allowance05/08/84
  5. Grant01/29/85
  6. Terminated06/20/95

The patent was granted on 01/29/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOLSTEIN & KAPPERT GMBH [DE]

Inventors

B. W. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

10/18/1988

RPI 939

Anuidade - prazo legal encerrado

#18.2

09/06/1988

RPI 933

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

12/13/1983

RPI 686

Solicitação de exame técnico

#4.1

03/01/1983

RPI 645

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

Patent monitoring

Track this patent in real time.

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