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

DISPOSITIVO PARA DRENAGEM DE FLUIDOS

Em AnáliseInvention Patent

Application data

Number

PI7606052

Type

Invention Patent

Filing

10/02/1975

Publication

-

Progress at the INPI

  1. Filing10/02/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 09/20/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SHERWOOD MEDICAL IND INC

Inventors

D. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/20/1983

RPI 674

Pedido de licença compulsória

#20.1

09/13/1983

RPI 673

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

Patent monitoring

Track this patent in real time.

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