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Official data from INPI

ESTRUTURA DE VÁLVULA.

ConcedidaInvention Patent

Application data

Number

PI8106020

Type

Invention Patent

Filing

09/21/1981

Publication

04/26/1983

Progress at the INPI

  1. Filing09/21/81
  2. Publication04/26/83
  3. Examination10/11/83
  4. Allowance04/24/84
  5. Grant11/27/84
  6. Terminated08/07/90

The patent was granted on 11/27/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Commercial Shearig, Inc.,

US

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Inventors

H. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

08/21/1984

RPI 722

Deferimento

#9.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

10/11/1983

RPI 677

Publicação do pedido de patente

#3.1

04/26/1983

RPI 653

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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