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Official data from INPI

COMPOSICAO DE COPOLIMERO TERMOPLASTICO DE ENXERTO

Em AnáliseInvention Patent

Application data

Number

PI7805428

Type

Invention Patent

Filing

09/26/1977

Publication

-

Progress at the INPI

  1. Filing09/26/77
  2. Publication
  3. Examination
  4. Allowance10/11/83
  5. Grant03/27/84
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 02/18/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIROYAL INC

See this company's full portfolio

Inventors

P. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/18/1986

RPI 800

20.7

02/12/1986

RPI 799

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

01/24/1984

RPI 692

Deferimento

#9.1

10/11/1983

RPI 677

Exigência - art. 36 da LPI

#6.1

01/18/1983

RPI 639

6.2

11/10/1981

RPI 577

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

Pedido de licença compulsória

#20.1

05/04/1993

RPI 1170

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