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Official data from INPI

PROCESSO PARA PREPARAR DETERGENTES DE ALQUENILSUCCINIMIDAS PARA UMA COMPOSIÇÃO DE COMBUSTÍVEL DE HIDROCARBONETO, E, COMPOSIÇÃO DE COMBUSTÍVEL DE HIDROCARBONETO

PublicadaInvention Patent

Application data

Number

PI8802045

Type

Invention Patent

Filing

04/28/1988

Publication

11/29/1988

Progress at the INPI

  1. Filing04/28/88
  2. Publication11/29/88
  3. Examination02/05/91
  4. Allowance03/19/96
  5. Abandoned
  6. In force

The application was allowed on 03/19/1996 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nalco Chemical Company

US

See this company's full portfolio

Inventors

G. M. (pessoa física)

US

W. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

043,736 · 04/29/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/29/1988

RPI 945

Pedido de patente depositado

#2.1

08/23/1988

RPI 931

Arquivamento - Art. 38 §2° da LPI

#11.4

01/27/1998

RPI 1414

Notificação para pagamento de retribuição

#13.1

12/10/1996

RPI 1358

Deferimento

#9.1

03/19/1996

RPI 1320

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

02/05/1991

RPI 1053

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