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Official data from INPI

ISOLADOR TRIANGULAR TRUNCADO.

ConcedidaInvention Patent

Application data

Number

PI8008895

Type

Invention Patent

Filing

10/28/1980

Publication

-

Progress at the INPI

  1. Filing10/28/80
  2. Publication
  3. Examination07/19/83
  4. Allowance09/25/84
  5. Grant05/28/85
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Frank Campbell, Jr

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

090,814 · 11/02/1979

US

PCT/80/01438 · 10/28/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

07/19/1983

RPI 665

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

21.4

07/04/1995

RPI 1283

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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