(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

COMPOSICAO ESTABILIZADORA PARA MASSAS DE MOLDAGEM A BASE DE CLORETO DE POLIVINILA

ConcedidaInvention Patent

Application data

Number

PI7706289

Type

Invention Patent

Filing

09/22/1976

Publication

-

Progress at the INPI

  1. Filing09/22/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant01/25/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 01/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NEYNABER CHEMIE GMBH

Inventors

L. F. (pessoa física)

W. P. (pessoa física)

W. K. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.