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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8006280

Type

Invention Patent

Filing

09/30/1980

Publication

-

Progress at the INPI

  1. Filing09/30/80
  2. Publication
  3. Examination07/12/83
  4. Allowance05/14/85
  5. Grant11/26/85
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Standard Oil Company

US

See this company's full portfolio

Inventors

A. H. (pessoa física)

M. E. (pessoa física)

R. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

09/03/1985

RPI 776

Deferimento

#9.1

05/14/1985

RPI 760

Republicação - classificação IPC

#15.11

10/02/1984

RPI 728

Exigência - art. 36 da LPI

#6.1

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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