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Official data from INPI

PÉROLAS DE ALUMINA DE FORMA ESFÉRICA, CATALISADOR DE HIDROTRATAMENTO, PROCESSO DE HIDROTRATAMENTO DE HIDROCARBONETOS LÍQUIDOS, PROCESSO PARA FAZER PÉROLAS DE ALUMINA ESFÉRICAS, PRODUTO DE PÉROLA E CATALISADOR DE HIDROTRATAMENTO.

ConcedidaInvention Patent

Application data

Number

PI8108392

Type

Invention Patent

Filing

12/23/1981

Publication

10/13/1982

Progress at the INPI

  1. Filing12/23/81
  2. Publication10/13/82
  3. Examination12/11/84
  4. Allowance10/14/86
  5. Grant06/30/87
  6. In force12/23/01

The patent was granted on 06/30/1987 and is in force until 12/23/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:12/23/2001

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Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

B. E. (pessoa física)

G. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

209.776 · 12/24/1980

US

325.699 · 11/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

08/27/1985

RPI 775

Pedido de certificado de adição de invenção

#5.1

04/23/1985

RPI 757

Solicitação de exame técnico

#4.1

12/11/1984

RPI 738

Publicação do pedido de patente

#3.1

10/13/1982

RPI 625

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

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