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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8009021

Type

Invention Patent

Filing

12/19/1980

Publication

11/24/1981

Progress at the INPI

  1. Filing12/19/80
  2. Publication11/24/81
  3. Examination09/13/83
  4. Allowance06/26/84
  5. Grant12/26/84
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Geon Company.

US

See this company's full portfolio

Inventors

B. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

11/24/1981

RPI 579

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

Pedido de licença compulsória

#20.1

07/05/1994

RPI 1231

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