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Official data from INPI

PREPARADO DE ORGANOSSILANA GRANULADA E PROCESSO PARA SUA OBTENCAO

Em AnáliseInvention Patent

Application data

Number

PI7801477

Type

Invention Patent

Filing

10/21/1977

Publication

-

Progress at the INPI

  1. Filing10/21/77
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Terminated06/29/93

The patent was granted on 07/26/1983 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: 02/07/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEGUSSA

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Inventors

R. L. (pessoa física)

W. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

02/07/1984

RPI 694

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

07/27/1982

RPI 614

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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