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Official data from INPI

PISTAO DE TAXA DE COMPRESSAO VARIAVEL

ConcedidaInvention Patent

Application data

Number

PI7703608

Type

Invention Patent

Filing

06/03/1977

Publication

-

Progress at the INPI

  1. Filing06/03/77
  2. Publication
  3. Examination
  4. Allowance04/12/83
  5. Grant08/30/83
  6. Terminated10/23/90

The patent was granted on 08/30/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. I. (pessoa física)

Inventors

B. A. (pessoa física)

K. A. (pessoa física)

P. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

100

04/12/1983

RPI 651

120

08/03/1982

RPI 615

Petição de recurso

#12.2

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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