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Official data from INPI

COMPOSICOES DE TER-POLIMEROS SEQUENCIAIS DE ETILENO-PROPILENO,PROCESSO PARA SUA PREPARACAO E APLICACAO

Concessão AnuladaInvention Patent

Application data

Number

PI7706195

Type

Invention Patent

Filing

09/18/1976

Publication

-

Progress at the INPI

  1. Filing09/18/76
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant11/29/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 02/14/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

See this company's full portfolio

Inventors

B. M. (pessoa física)

M. G. (pessoa física)

P. G. (pessoa física)

S. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

02/14/1984

RPI 695

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

11/03/1982

RPI 628

Exigência - art. 36 da LPI

#6.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

Pedido de licença compulsória

#20.1

10/13/1992

RPI 1141

Pedido de licença compulsória

#20.1

02/26/1991

RPI 1056

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