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

COMPOSTO ORGANICO DE ESTANHO E COMPOSICAO DE POLIMERO DE CLORETO DE VINILA ESTABILIZADA TERMICAMENTE

ConcedidaInvention Patent

Application data

Number

PI7907337

Type

Invention Patent

Filing

11/13/1978

Publication

-

Progress at the INPI

  1. Filing11/13/78
  2. Publication
  3. Examination07/27/82
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T CHEMICALS INC

See this company's full portfolio

Inventors

D. R. (pessoa física)

L. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Deferimento

#9.1

09/30/1986

RPI 832

8.1

07/22/1986

RPI 822

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Exigência - art. 36 da LPI

#6.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

09/20/1983

RPI 674

6.2

01/18/1983

RPI 639

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

20.4

10/22/1991

RPI 1090

Pedido de licença compulsória

#20.1

10/15/1991

RPI 1089

Patent monitoring

Track this patent in real time.

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