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

PROCESSO E APARELHO PARA DETERMINAR A TAXA DE CORROSÃO DE UM FLUIDO AO MATERIAL.

ConcedidaInvention Patent

Application data

Number

PI8203560

Type

Invention Patent

Filing

06/17/1982

Publication

06/14/1983

Progress at the INPI

  1. Filing06/17/82
  2. Publication06/14/83
  3. Examination08/27/85
  4. Allowance08/11/87
  5. Grant02/23/88
  6. Terminated04/02/96

The patent was granted on 02/23/1988 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: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

Inventors

K. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

274,880 · 06/18/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

09/09/1986

RPI 829

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

06/14/1983

RPI 660

Pedido de patente depositado

#2.1

08/03/1982

RPI 615

Anuidade - prazo legal encerrado

#18.2

04/02/1996

RPI 1322

Patent monitoring

Track this patent in real time.

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