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

PROCESSO PARA CEMENTACAO E RECOZIMENTO DE CARBURACAO NEUTRA DE PECAS METALICAS

IndeferidaInvention Patent

Application data

Number

PI8300903

Type

Invention Patent

Filing

07/01/1982

Publication

04/17/1984

Progress at the INPI

Under appeal
  1. Filing07/01/82
  2. Publication04/17/84
  3. Examination01/22/85
  4. Refused08/19/86
  5. Grant
  6. In force

The application was refused by the INPI on 08/19/1986. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LINDE AG [DE]

See this company's full portfolio

Inventors

D. W. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

04/22/1987

RPI 861

Indeferimento

#9.2

08/19/1986

RPI 826

Conhecimento de parecer técnico

#7.1

12/31/1985

RPI 793

Pedido de certificado de adição de invenção

#5.1

06/11/1985

RPI 764

Solicitação de exame técnico

#4.1

01/22/1985

RPI 744

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

04/12/1983

RPI 651

Patent monitoring

Track this patent in real time.

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