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Official data from INPI

PROCESSO PARA A REMOÇÃO DE H2S E COS DE UMA MISTURA GASOSA, E ENXOFRE.

ConcedidaInvention Patent

Application data

Number

PI8108340

Type

Invention Patent

Filing

12/22/1981

Publication

10/05/1982

Progress at the INPI

  1. Filing12/22/81
  2. Publication10/05/82
  3. Examination11/20/84
  4. Allowance12/13/88
  5. Grant08/29/89
  6. In force12/22/01

The patent was granted on 08/29/1989 and is in force until 12/22/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:12/22/2001

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

C. J. (pessoa física)

US

C. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

220,487 · 12/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/13/1988

RPI 947

Exigência - art. 36 da LPI

#6.1

07/05/1988

RPI 924

Conhecimento de parecer técnico

#7.1

02/24/1987

RPI 853

Exigência - art. 36 da LPI

#6.1

05/14/1985

RPI 760

Solicitação de exame técnico

#4.1

11/20/1984

RPI 735

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

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