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Official data from INPI

APERFEICOAMENTO EM PROCESSO PARA EXTRUSAO DE POLIMEROS TERMOPLASTICOS CONTENDO ELASTOMERO EM FASE SEPARADA E RESPECTIVA COMPOSICAO

Em AnáliseInvention Patent

Application data

Number

PI7800050

Type

Invention Patent

Filing

01/05/1977

Publication

-

Progress at the INPI

  1. Filing01/05/77
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Terminated02/25/86

The patent was granted on 07/26/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

See this company's full portfolio

Inventors

T. M. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

07/20/1982

RPI 613

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