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

AQUECEDOR LAMINAR E PROCESSO PARA PROPORCIONAR UMA COBERTURA PROTETORA SOBRE UM SUBSTRATO

Em AnáliseInvention Patent

Application data

Number

PI8402218

Type

Invention Patent

Filing

05/10/1984

Publication

12/26/1984

Progress at the INPI

  1. Filing05/10/84
  2. Publication12/26/84
  3. Examination02/17/87
  4. Allowance06/20/89
  5. Grant02/06/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

US

See this company's full portfolio

Inventors

D. C. (pessoa física)

M. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

493.445 · 05/11/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

10/17/1989

RPI 991

Deferimento

#9.1

06/20/1989

RPI 974

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

02/17/1987

RPI 852

Publicação do pedido de patente

#3.1

12/26/1984

RPI 740

Pedido de patente depositado

#2.1

07/24/1984

RPI 718

Carta-patente expirada

#21.1

Patente extinta em 10/05/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

02/06/1990

RPI 1005

Patent monitoring

Track this patent in real time.

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