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

PROCESSO PARA PREPARAR UM LAMINADO POLIMÉRICO; LAMINADO POLIMÉRICO.

Em AnáliseInvention Patent

Application data

Number

PI8401889

Type

Invention Patent

Filing

04/24/1984

Publication

11/26/1985

Progress at the INPI

  1. Filing04/24/84
  2. Publication11/26/85
  3. Examination05/13/86
  4. Allowance03/20/90
  5. Grant09/25/90
  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: 05/13/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

See this company's full portfolio

Inventors

C. K. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Carta-patente expirada

#21.1

Patente extinta em 24/04/99

07/08/2008

RPI 1957

Republicação - classificação IPC

#15.11

10/15/1991

RPI 1089

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

07/31/1990

RPI 1026

Deferimento

#9.1

03/20/1990

RPI 1010

Related

From the same holder

Patent monitoring

Track this patent in real time.

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