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

APERFEICOAMENTO EM PROCESSO DESCONTINUO PARA A FABRICACAO DE UM COMPOSTO PEROXI

ConcedidaInvention Patent

Application data

Number

PI8000526

Type

Invention Patent

Filing

02/06/1979

Publication

-

Progress at the INPI

  1. Filing02/06/79
  2. Publication
  3. Examination12/14/82
  4. Allowance11/13/84
  5. Grant05/28/85
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENNWALT CORP

See this company's full portfolio

Inventors

K. V. (pessoa física)

S. C. (pessoa física)

V. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Deferimento

#9.1

11/13/1984

RPI 734

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

20.4

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.