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Official data from INPI

PO ZEOLITICO CRISTALINO DO TIPO A E PROCESSO PARA A PREPARACAO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI7707379

Type

Invention Patent

Filing

11/11/1976

Publication

-

Progress at the INPI

  1. Filing11/11/76
  2. Publication
  3. Examination
  4. Allowance04/08/86
  5. Grant10/29/86
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEGUSSA

HENKEL KGAA

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Inventors

K. D. (pessoa física)

P. E. (pessoa física)

R. W. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

04/23/1985

RPI 757

14.1

12/06/1983

RPI 685

14.4

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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