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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE TETRA-ALCOIL-2,2,6,6-PIPERIDILAMINAS-4

Em AnáliseInvention Patent

Application data

Number

PI8601671

Type

Invention Patent

Filing

04/14/1986

Publication

12/16/1986

Progress at the INPI

  1. Filing04/14/86
  2. Publication12/16/86
  3. Examination09/20/88
  4. Allowance01/14/92
  5. Grant10/27/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uniroyal Chemical Company, Inc.

US

See this company's full portfolio

Inventors

H. G. (pessoa física)

US

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

723.770 · 04/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 14/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

06/02/1992

RPI 1122

Deferimento

#9.1

01/14/1992

RPI 1102

Republicação - classificação IPC

#15.11

11/12/1991

RPI 1093

Exigência - art. 36 da LPI

#6.1

04/30/1991

RPI 1065

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