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Official data from INPI

PROCESSO E COMPOSICAO PARA REMOCAO DE SULFETO DE HIDROGENIO DE MISTURA GASOSA

Em ExigênciaInvention Patent

Application data

Number

PI8405578

Type

Invention Patent

Filing

11/03/1983

Publication

09/10/1985

Progress at the INPI

  1. Filing11/03/83
  2. Publication09/10/85
  3. Examination05/20/86
  4. Allowance03/01/90
  5. Abandoned
  6. In force

The application was allowed on 03/01/1990 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC [US]

See this company's full portfolio

Inventors

B. K. (pessoa física)

B. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/22/1989

RPI 983

6.2

08/09/1988

RPI 929

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

09/10/1985

RPI 777

Pedido de patente depositado

#2.1

01/22/1985

RPI 744

Republicação - classificação IPC

#15.11

09/17/1991

RPI 1085

Arquivamento - Art. 38 §2° da LPI

#11.4

12/18/1990

RPI 1046

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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