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

MISTURA SENSIVEL A LUZ

ConcedidaInvention Patent

Application data

Number

PI7904034

Type

Invention Patent

Filing

06/26/1978

Publication

-

Progress at the INPI

  1. Filing06/26/78
  2. Publication
  3. Examination05/11/82
  4. Allowance10/27/87
  5. Grant05/31/88
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

See this company's full portfolio

Inventors

B. G. (pessoa física)

R. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

03/10/1987

RPI 855

Conhecimento de parecer técnico

#7.1

05/31/1983

RPI 658

Solicitação de exame técnico

#4.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

Patent monitoring

Track this patent in real time.

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