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Official data from INPI

Película de polipropileno antistática orientada, selável termicamente, e, processo para sua fabricação.

ConcedidaInvention Patent

Application data

Number

PI7905957

Type

Invention Patent

Filing

09/18/1979

Publication

-

Progress at the INPI

  1. Filing09/18/79
  2. Publication
  3. Examination11/17/81
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

British Cellophane Limited

Inventors

A. W. (pessoa física)

C. D. (pessoa física)

P. W. (pessoa física)

Technical data

Priority claims

GB

37295/78 · 09/19/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

6.2

06/01/1982

RPI 606

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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