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Official data from INPI

PROCESSO PARA A REMOÇÃO DE H2S DE UMA CORRENTE GASOSA ACRE

ConcedidaInvention Patent

Application data

Number

PI8203008

Type

Invention Patent

Filing

05/24/1982

Publication

05/10/1983

Progress at the INPI

  1. Filing05/24/82
  2. Publication05/10/83
  3. Examination06/25/85
  4. Allowance09/01/87
  5. Grant04/26/88
  6. Terminated07/18/95

The patent was granted on 04/26/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

G. B. (pessoa física)

US

Z. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

267,196 · 05/26/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Conhecimento de parecer técnico

#7.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Publicação do pedido de patente

#3.1

05/10/1983

RPI 655

Pedido de patente depositado

#2.1

07/13/1982

RPI 612

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 53/36; C01B 17/05; C10K 1/14; C01B 17/00; C10K 1/00.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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