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Official data from INPI

INDICADOR DE ANGULOS PARA INDICACAO EM DUAS DIRECOES MUTUAMENTE PERPENDICULARES

ConcedidaInvention Patent

Application data

Number

PI7903336

Type

Invention Patent

Filing

05/25/1978

Publication

-

Progress at the INPI

  1. Filing05/25/78
  2. Publication
  3. Examination02/02/82
  4. Allowance
  5. Grant09/27/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. L. (pessoa física)

Inventors

B. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Solicitação de exame técnico

#4.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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