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Official data from INPI

APARELHO PARA VARIAR A PRESSÃO DE UMA MASSA DE FLUIDO COMPRESSÍVEL.

ConcedidaInvention Patent

Application data

Number

PI8105335

Type

Invention Patent

Filing

08/21/1981

Publication

05/04/1982

Progress at the INPI

  1. Filing08/21/81
  2. Publication05/04/82
  3. Examination07/10/84
  4. Allowance04/16/85
  5. Grant10/29/85
  6. Terminated02/04/92

The patent was granted on 10/29/1985 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: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Supply (Constructions) Co. Ltd.

Inventors

P. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

180.349 · 08/22/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/06/1985

RPI 772

Deferimento

#9.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

07/10/1984

RPI 716

Publicação do pedido de patente

#3.1

05/04/1982

RPI 602

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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