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Official data from INPI

PROCESSO PARA A PREPARACAO APERFEICOADA DE 2-ETILHEXANOL

Em AnáliseInvention Patent

Application data

Number

PI7801564

Type

Invention Patent

Filing

03/26/1977

Publication

-

Progress at the INPI

  1. Filing03/26/77
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant08/30/83
  6. Terminated06/29/93

The patent was granted on 08/30/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/14/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RUHRCHEMIE AG

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Inventors

C. B. (pessoa física)

K. W. (pessoa física)

N. H. (pessoa física)

T. H. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.6

05/14/1985

RPI 760

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

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

07/20/1982

RPI 613

8.1

12/01/1981

RPI 580

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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