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Official data from INPI

PROCESSO DE REFORMA DE HIDROCARBONETOS E PROCESSO DE CONVERSÃO DE HIDROCARBONETOS.

ConcedidaInvention Patent

Application data

Number

PI8300400

Type

Invention Patent

Filing

01/27/1983

Publication

10/25/1983

Progress at the INPI

  1. Filing01/27/83
  2. Publication10/25/83
  3. Examination11/05/85
  4. Allowance10/06/87
  5. Grant05/31/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company.

US

See this company's full portfolio

Inventors

B. C. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

344.572 · 02/01/1982

US

393.160 · 06/28/1982

US

420.540 · 09/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/06/1987

RPI 885

11.8

08/11/1987

RPI 877

Retificação

#15.3

06/09/1987

RPI 868

Solicitação de exame técnico

#4.1

11/05/1985

RPI 785

Publicação do pedido de patente

#3.1

10/25/1983

RPI 679

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

Patente extinta em 27/01/98

07/01/2008

RPI 1956

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