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Official data from INPI

BOMBA DE VACUO DO TIPO COM FECHO HIDRAULICO

Concessão AnuladaInvention Patent

Application data

Number

PI7604259

Type

Invention Patent

Filing

06/30/1976

Publication

-

Progress at the INPI

  1. Filing06/30/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/28/84
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 05/15/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SHINKO FOODS CO LTD

Inventors

A. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

05/15/1984

RPI 708

Concessão da patente

#16.1

02/28/1984

RPI 697

11.8

08/16/1983

RPI 669

14.1

02/16/1983

RPI 643

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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