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

COMPOSICAO CIMENTIFERA,COMPOSICAO ADITIVA PLASTIFICANTE E PROCESSO PARA PREPARACAO DE UMA COMPOSICAO CIMENTIFERA PLASTIFICADA

ConcedidaInvention Patent

Application data

Number

PI8303261

Type

Invention Patent

Filing

06/21/1982

Publication

02/07/1984

Progress at the INPI

  1. Filing06/21/82
  2. Publication02/07/84
  3. Examination05/07/85
  4. Allowance06/14/88
  5. Grant01/10/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NAT STARCH CHEM CORP [US]

Inventors

B. G. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

02/07/1984

RPI 694

Pedido de patente depositado

#2.1

08/02/1983

RPI 667

Carta-patente expirada

#21.1

Patente extinta em 20/06/98

08/19/2008

RPI 1963

Patent monitoring

Track this patent in real time.

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