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Official data from INPI

SUBSTANCIA MINERAL,A BASE DE UM MINERAL TRILAMINAR REVERSIVELMENTE INTUMESCIVEL,DESENVOLVIDA PARA SER CRISTALINA SOBRE UMA GRANDE AREA E TENDO CAMADAS CRISTALINAS SEPARADAS ENTRE SI

Em AnáliseInvention Patent

Application data

Number

PI7804458

Type

Invention Patent

Filing

07/11/1977

Publication

-

Progress at the INPI

  1. Filing07/11/77
  2. Publication
  3. Examination
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Terminated05/17/88

The patent was granted on 08/26/1986 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KRAMER GMBH & CO KG HANS

Inventors

D. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

07/02/1985

RPI 767

Conhecimento de parecer técnico

#7.1

06/12/1984

RPI 712

15.0

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

07/06/1982

RPI 611

6.2

12/29/1981

RPI 584

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