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Official data from INPI

APERFEICOAMENTOS EM MOTORES STIRLING

Em AnáliseInvention Patent

Application data

Number

PI8503646

Type

Invention Patent

Filing

08/01/1985

Publication

03/10/1987

Progress at the INPI

  1. Filing08/01/85
  2. Publication03/10/87
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

Talk to a specialist

Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENTRA PESQUISA EM EN E TRANSP [BR]

Inventors

S. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

05/24/1988

RPI 918

Publicação do pedido de patente

#3.1

03/10/1987

RPI 855

Pedido de patente depositado

#2.1

10/08/1985

RPI 781

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