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

PROCESSO PARA DISPERSAR PARTICULADOS FINOS EM ÀGUA E PROCESSO PARA PREPARAR UMA COMPOSIÇÃO DISPERSANTE SOLÚVEL EM ÀGUA

Em AnáliseInvention Patent

Application data

Number

PI8504005

Type

Invention Patent

Filing

05/21/1985

Publication

06/10/1986

Progress at the INPI

Under appeal
  1. Filing05/21/85
  2. Publication06/10/86
  3. Examination08/02/88
  4. Refused01/19/93
  5. Grant
  6. In force

The application was refused by the INPI on 01/19/1993. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

G. L. (pessoa física)

T. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

08/02/1988

RPI 928

Publicação do pedido de patente

#3.1

06/10/1986

RPI 816

Pedido de patente depositado

#2.1

10/22/1985

RPI 783

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Indeferimento

#9.2

01/19/1993

RPI 1155

Conhecimento de parecer técnico

#7.1

09/03/1991

RPI 1083

Patent monitoring

Track this patent in real time.

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