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

PROCESSO PARA MODIFICAÇÃO DE ENXOFRE ELEMENTAR, PROCESSO PARA CONVERSÀO DE ENXOFRE ELEMENTAR E COMPOSIÇÃO RESULTANTE DO PROCESSO.

ConcedidaInvention Patent

Application data

Number

PI8000508

Type

Invention Patent

Filing

01/28/1980

Publication

-

Progress at the INPI

  1. Filing01/28/80
  2. Publication
  3. Examination11/23/82
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Terminated02/11/92

The patent was granted on 07/30/1985 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Southwest Research Institut

US

Inventors

D. J. (pessoa física)

F. H. (pessoa física)

L. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

007042 · 01/29/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Republicação - classificação IPC

#15.11

04/23/1985

RPI 757

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

Patent monitoring

Track this patent in real time.

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