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Official data from INPI

PURIFICACAO DE OXIDO DE PROPILENO POR DESTILACAO EXTRATIVA

Em AnáliseInvention Patent

Application data

Number

PI7805023

Type

Invention Patent

Filing

08/05/1977

Publication

-

Progress at the INPI

  1. Filing08/05/77
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant08/30/83
  6. Terminated02/25/86

The patent was granted on 08/30/1983 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

HALCON RES & DEV

Inventors

S. J. (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

08/30/1983

RPI 671

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

07/27/1982

RPI 614

6.2

10/13/1981

RPI 573

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