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

ACOPLAMENTO HIDRÁULICO SUBMARINO

PublicadaInvention Patent

Application data

Number

PI8603378

Type

Invention Patent

Filing

07/17/1986

Publication

11/17/1987

Progress at the INPI

  1. Filing07/17/86
  2. Publication11/17/87
  3. Examination05/29/90
  4. Allowance07/02/91
  5. Grant02/18/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

National Coupling Company, Inc.

US

See this company's full portfolio

Inventors

R. I. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

801.477 · 11/25/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/17/1987

RPI 891

Pedido de patente depositado

#2.1

12/16/1986

RPI 843

Carta-patente expirada

#21.1

Patente extinta em 17/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/18/1992

RPI 1107

Notificação para pagamento de retribuição

#13.1

10/29/1991

RPI 1091

Deferimento

#9.1

07/02/1991

RPI 1074

Exigência - art. 36 da LPI

#6.1

01/22/1991

RPI 1051

Solicitação de exame técnico

#4.1

05/29/1990

RPI 1020

Patent monitoring

Track this patent in real time.

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