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Official data from INPI

RELÉ DE TERRA DE RAZÃO

ConcedidaInvention Patent

Application data

Number

PI8201521

Type

Invention Patent

Filing

03/19/1982

Publication

02/08/1983

Progress at the INPI

  1. Filing03/19/82
  2. Publication02/08/83
  3. Examination04/09/85
  4. Allowance04/08/86
  5. Grant09/30/86
  6. Terminated11/15/94

The patent was granted on 09/30/1986 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

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Inventors

H. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

245.769 · 03/20/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Republicação - classificação IPC

#15.11

04/01/1986

RPI 806

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

02/08/1983

RPI 642

Pedido de patente depositado

#2.1

05/04/1982

RPI 602

Anuidade - prazo legal encerrado

#18.2

11/15/1994

RPI 1250

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