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Official data from INPI

MASSAS DE POLISSILOXANAS MODIFICADAS COM POLIURETANA

Em AnáliseInvention Patent

Application data

Number

PI7804375

Type

Invention Patent

Filing

07/07/1977

Publication

-

Progress at the INPI

  1. Filing07/07/77
  2. Publication
  3. Examination
  4. Allowance09/04/84
  5. Grant03/26/85
  6. Terminated06/14/88

The patent was granted on 03/26/1985 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

See this company's full portfolio

Inventors

L. I. (pessoa física)

M. A. (pessoa física)

M. H. (pessoa física)

S. H. (pessoa física)

S. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

6.2

10/06/1981

RPI 572

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