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

PROCESSO PARA PREPARAÇÃO DE COMPOSTO DE ESTERES DE DIFENILA SUBSTITUÍDA

Em AnáliseInvention Patent

Application data

Number

PI8004871

Type

Invention Patent

Filing

08/04/1980

Publication

-

Progress at the INPI

  1. Filing08/04/80
  2. Publication
  3. Examination
  4. Allowance07/08/86
  5. Grant06/26/90
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company

US

See this company's full portfolio

Inventors

W. G. (pessoa física)

US

Technical data

Priority claims

US

163.460 · 06/27/1980

US

65.480 · 08/10/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/07/1989

RPI 994

110

09/12/1989

RPI 986

120

03/14/1989

RPI 960

15.19

03/01/1988

RPI 906

Retificação

#15.3

11/24/1987

RPI 892

Recurso

#12.1

09/30/1986

RPI 832

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

6.2

12/07/1982

RPI 633

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: A01N 37/16; C07C 121/60.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

Concessão da patente

#16.1

06/26/1990

RPI 1024

14.1

03/01/1990

RPI 1007

Patent monitoring

Track this patent in real time.

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